Showing posts with label SmartPhone. Show all posts
Showing posts with label SmartPhone. Show all posts

Friday, November 15, 2013

Warning : Your smartphone can reveal your PINs


iPhone pass code is one if the most in-secure security options available
 as compared to Passwords in Android.



Smartphones have become part of our daily life, but it can be dangerous and can be used to reveal our  PIN s.

A team of researcher in University of Cambridge found that numbers entered using number only soft keypad could be identified. They used a program called "PIN Skimmer" for this purpose. The software uses Smartphone's front facing camera and mic to see your face and to listen keypad clicks as you type. They used Samsung Galaxy S3 and Nexus S smartphones to carry this test.

According to research the microphone is used to detect the touch events as the user enters the pin. In effect it hears the clicks the phone makes as the a user presses a button on soft number pad. The camera then estimates the orientation of the phone as the user is doing this and "correlates it to the position of the digit tapped by the user.

"We watch how your face appears to move as you jiggle your phone by typing" said Ross Anderson, professor of security engineering at Cambridge University. And more important is "It did surprise us how well it worked" he told. When trying to work out four-digit Pins the program was successful more than 50% of the time after five attempts. With eight-digit Pins the success rate was 60% after 10 attempts.

Many smartphone users have a Pin code to lock their phone but they are increasingly used to access other types of applications on a smartphone, including banking apps. iPhone s have only option of pin codes as security lock and is more easy to break security in this way.
This raises the question of which resources should remain accessible on a phone when someone is entering a sensitive PIN, say the report's authors.
Earlier this year, another security flaw allowed malicious third-party apps to gather data from the smartphone's accelerometer sensors and used it to guess PIN codes and screen lock patterns. Have you ever experienced any similar security issues with your smartphone.? Please share your feedback. 
Suggestions:
- Use finger print sensors (becoming available on iPhone 5S and new Droids) and facial recognition for Financial apps.
- Using large numbers for pin code, but it would be hard to remember.
- Use more complex pin codes or randomize the position of the digits.


Source: Phone arena

Friday, November 8, 2013

Vivo Xplay review: $500 buys plenty of smartphone in China

Vivo Xplay review
A review of a smartphone that's primarily sold in China? Yes, that's exactly what this is, and with good reason. The Vivo Xplay merits attention because of the components it contains -- some of which are exotic, like its "HiFi grade" audio chips, and some of which are straightforward but desirable, like its huge, 5.7-inch 1080p display and Snapdragon 600 processor. The handset also helps to set a benchmark for what smartphone hardware is actually worth, since its $480 street price puts it closer to the smaller, Google-sponsored Nexus 5 ($350) than typical big-phones like the Galaxy Note 3 or HTC One Max, which fetch around $800 unlocked. Although US customers can import the Xplay for $520, it lacks the right bands for proper 3G support in North America and is actually more suitable for HSPA+ networks in the UK, where it costs £495. So, let's find out what China can deliver for that sort of money.

Vivo Xplay review

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17 PHOTOS

HARDWARE

Vivo Xplay review
The Xplay looks big enough, and different enough from common Western smartphones, to attract a bit of attention from other people. Strangely, a number of encounters began with the question, "Is that a Sony?" We think some folks may have subconsciously connected the rear VIVO logo with Sony's VAIO branding on laptops, even though the two are actually quite different when compared side by side. In any case, Vivo should probably take this as a compliment, since Sony has a reputation for decent build quality and pleasing aesthetics.
The non-removable metal backplate adds a premium feel, as do the gently illuminated capacitive navigation buttons. The metal is sandwiched between a plastic top and bottom that contain the stereo speakers, the 3.5mm jack (top-center) and the micro-USB port (bottom-center), and that are presumably important for radio reception.
The front of the Xplay is covered with a single piece of toughened glass, punctuated only by the earpiece speaker at the top. This glass is bordered by a chrome band that is actually plastic, which is susceptible to dents and scratches and which brings the tone down quite a bit. Finally, on the right-hand edge there's a volume rocker and well-positioned power button, and on the left edge there's a SIM drawer that pops out by means of a pin.
Overall, we'd rate the Xplay's build quality as average to good, while reserving special praise for its dimensions. Thanks to its moderate bezels, sub-8mm thickness and relatively low weight, the phone is easy to hold despite its size, even if it does inevitably bulge in most pockets.
Vivo Xplay
Dimensions153.8 x 79.68 x 7.87mm (6.06 x 3.14 x 0.31 inches)
Weight6.56 ounces (187g)
Screen size5.7 inches
Screen resolution1,920 x 1,080
Screen typeLCD
Battery3,400mAh (non-removable)
Internal storage16GB/32GB
External storageNone
Rear camera13MP stills (1/3.06-inch CMOS with f/2.0 lens)
Front-facing cam5MP stills, 1080p video
Video capture1080p
NFCYes
RadiosGPRS, EDGE, HSPA+, GSM (850/900/1800/1900), WCDMA (2100)
Bluetoothv4.0
SoCQualcomm Snapdragon 600
CPU1.7GHz quad-core
GPUAdreno 320
RAM2GB
Connectivitymicro-USB 2.0, USB OTG, DLNA, IR
WiFiDual-band, 802.11a/ac/b/g/n
Wireless ChargingNo
Operating systemAndroid 4.2.2 with Vivo skin

DISPLAY AND AUDIO

Vivo Xplay review
If you could strip the LCD panels out of a Vivo Xplay and a Sony Xperia Z (or Z1), and if you could show them to passersby on the street, the Xplay would win every time. In fact, its 1,920 x 1,080 display is right up there with some of the best we've seen in terms of how close icons look to the surface of the glass, viewing angles and outdoor visibility.
Video watching is something of a letdown thanks to the tiny stereo speakers at the rear of the device, which do the job, but don't come anywhere close to the NXP-controlled speakers found in HTC's BoomSound phones, let alone the speakers in a full-sized tablet like a Kindle Fire HD or iPad Air.
Thankfully, things improve when you plug in some headphones. The Xplay has two different audio modes: one for playing regular audio in any app, and one that can only be activated when playing content through the stock audio and video apps. According to Vivo, engaging this second mode routes the audio through a HiFi-grade DAC (Cirrus Logic's CS4398) and amplifier (Texas Instrument's OPA2604). It's impossible for us to tell exactly what's going on in there, but we have no reason to doubt Vivo's assertions, especially since the battery appears to drain more quickly when playing music in the second mode. It's also true, with this mode activated, that the phone's output through the 3.5mm jack can be pushed a lot higher with no perceptible loss of quality -- something that could come in handy if the phone is being used as an analog audio source for a speaker dock or in-car system.
Then again, there are software and hardware limitations that prevent this extra audio circuitry from being much use, even before you get to the point of trying to decide whether it's noticeably better. The software limitation is that you can only turn on HiFi audio when playing locally stored music in the stock player, rather than listening to Spotify or other sources. The hardware limitation is the lack of expandable storage, which limits the amount of space for high-bit-rate music (such as FLAC files) that could exploit the superior audio circuitry. In our 16GB version, the system took 5.35GB out of 14.68GB of internal storage space, and our apps and media quickly took this down to a paltry 600MB of spare capacity. So the more expensive 32GB version will be a must for anyone with a decent music collection.
The only other way to get locally stored music onto the device is through a USB drive attached via an OTG cable -- a solution that burns the battery and gets in the way of keeping the device charged up. This will be a particular issue for someone who wants to use the Xplay for car audio -- you'd need some sort of 12v powered hub setup that, frankly, could be more effort than it's worth unless you feel the Xplay's analog output sounds particularly good through your car speakers.

CAMERA

DNP Vivo Xplay review
A nice surprise! While we're going to hazard a guess that the Xplay's camera module is a relatively standard, off-the-shelf Sony affair, its 13-megapixel still-image output is excellent in well-lit conditions. Quality falls off sharply as soon as the light dims and the camera has to pump up its ISO, so this isn't in the same league as what you'd find in the Sony Xperia Z1. But the Xplay has already provided us with some memorable shots and we can't see any reason to rank it below the non-stabilized camera module in the Samsung Galaxy Note 3 or HTC One Max. The stock camera app is basic at best, but there are plenty of decent third-party camera apps to get around that problem, not to mention better gallery apps too.

Vivo Xplay sample stills

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15 PHOTOS
DNP Vivo Xplay review
As for the front-facer, it has an unusually high 5-megapixel resolution, but it looks like these pixels are crowded onto a typical small, secondary sensor. Low-light shots look no better than lower-res alternatives from another phone, and it's only in daylight that you'd likely notice much benefit from the extra detail.

Video quality was acceptable given the lack of optical stabilization, with a solid 2.2 MB/s data rate that didn't collapse under the weight of detailed scenes. The camera adjusted exposure quite smoothly during filming, but didn't automatically adjust focus -- we had to do that by tapping the screen. There's nothing especially good about the audio recording quality here, which gave voices a sort of hollow-sounding aspect, perhaps due to excessive software-based noise filtering.

PERFORMANCE AND BATTERY LIFE

Vivo XplayMoto XSamsung Galaxy S 4 (T-Mobile)HTC One (global)
Quadrant 2.010,6138,95812,68412,495
AnTuTu 3.x22,14918,58526,14325,140
SunSpider 0.9.1 / 1.0 (Chrome, ms)764 / 1,1161,030 / 1,023772 / 723991 / 630
CF-Bench20,64414,09228,11125,267
GFXBench 2.714161615
Vellamo HTML 52,3472,4271,9032,429
SunSpider: lower scores are better.
We've often wondered how much of the credit for a fast processor lies with the chip designer or the phone manufacturer. We've seen enough differences in performance across similarly specced devices to know that it's possible to take a great chip and make it perform poorly, which means there's a chance that the Xplay may not be as good as other Snapdragon 600 phones. Fortunately, there's little sign of this happening. Though we did notice some slow frame rates in games, the Xplay's performance is still a notch above something like the Samsung Galaxy Mega, which costs about the same, but uses a slower Snapdragon 400 processor (and a lower-res display, to boot). That said, after playing a game like F-SIM side by side with other devices, it seems the implementation of the chip here is slightly worse than Samsung's (in the Galaxy S 4) and possibly also Sony's (in the Xperia Z).
As for battery life, the Xplay also seems to rank somewhere around average for the current generation of big phones. The 3,400mAh battery gave us a full day of heavy use without issue, only getting down to the 10 percent mark at around 11 PM. On a day of light use, with just calls and browsing, we generally ended the day with around 40 percent of battery left -- results that tally very closely with the HTC One Max, which has a similarly sized battery. In our standard rundown test, however, the Xplay lasted for 10 hours and 38 minutes -- better than the Galaxy Note 3, but significantly worse than the HTC One Max, which shows there's room for improvement in terms of power efficiency. We also noticed that some games, likeClash of Heroes, drained the battery pathologically quickly, but that's not hugely different than some other Android phones.
Finally, there were no major hiccups in terms of call quality or cellular data. The Xplay sometimes reverted to EDGE connectivity when other phones managed to retain weak, but usable HSPA+ reception, perhaps because the handset is only compatible with one WCDMA band (2,100). This behavior may actually be a good thing for battery life, but it sometimes left us with data speeds below what we knew to be achievable in a particular location. This was only an issue in low-reception areas however -- everywhere else, the phone behaved as normal.

SOFTWARE

Vivo Xplay review
This is a tricky section to cover because some of Vivo's pre-installed software additions, like its "Vivoice" voice search, were only of use to speakers of Chinese. Moreover, Vivo has stuck a couple of skins over Android that we just couldn't get along with -- the "BBK Launcher" that gives app icons a cartoony feel and somehow removes the app drawer, plus an even stranger interface called "Scene Desktop" that comes complete with annoying background music.
Such is the flexibility of Google's operating system, however, that it's no big deal to switch these skins out for something more familiar, like Nova Launcher -- which is precisely what we did, while also replacing the default keyboard with SwiftKey.
That said, we still made use of a couple of Vivo's software extras, and in particular a little interface mode that we came to call "Mini Me" (not its official name). Much like Samsung's "one-handed operation" mode on the Galaxy Note 3, this overlays a downsized version of the display on top of the regular screen to make it easier to control the phone with your thumb. The mini screen can be resized and placed in any corner, and we set it to be activated just by shaking the phone. We'd be lying if we said we came to depend on Mini Me, but it was shaken into existence on the street a couple of times and certainly came in handy.

We also used a feature that allows you to switch the display on with a double-tap. That's something we first tried on Nokia's N9 and in a number of devices since, and which makes some sense on a phone the size of the Xplay because the power button is sometimes hard to reach.
Other, less useful additions include Samsung-esque features that keep the front-facing camera constantly powered on so that it can react to gestures -- such as keeping the display on when you're looking at it, or switching it on when you wave your hand in front of the phone. We found these "non-touch operations" to be hit-or-miss, and not worth the inevitable battery draw.
Aside from all the Xplay's optional curiosities, we also encountered a more fundamental issue: The Google Play Store refused to let us install a number of games, particular AAA titles, leaving us with a 50-50 hit rate as to whether a particular game we wanted was disallowed. WordamentM&M Clash of Heroes andF-SIM Space Shuttle all ran fine, with no issues using motion controls in the latter title. Asphalt 8: AirborneReal Boxing and Grand Theft Auto: Vice City didn't make the grade, so there'll be no guarantee that your favorite games will be playable on this handset.

WRAP-UP

Vivo Xplay review
This review had dual purposes: to see how the Vivo Xplay measures up in its own right, and to use it as a benchmark for what can be achieved in a premium Android smartphone that costs less than $500 in its native market. As far as the first part goes, we need to be critical of a few things. Vivo's vision of creating a "HiFi grade" smartphone for audio and video is let down by the subpar stereo speakers and the lack of expandable storage. The idea of using audio circuitry that wasn't intended for use in a low-power smartphone smacks of marketing gimmickry, although we can't be too harsh on it because the audio output was pleasant even at high volumes. Plus, we've heard many smartphones that fare worse in this department. Finally, the same allegation of gimmickry can be leveled against Vivo's UI additions, only one or two of which we actually put to use when we weren't trying to show off. If we're totally focused on price, we'd probably go for the cheaper Nexus 5 rather than the Xplay, even though the difference in screen size prevents these devices from being totally comparable.
Then again, we have to give Vivo a nod for demonstrating what can be achieved in this price bracket. It hasn't only shoved in a 1080p panel, a Snapdragon 600 processor and a very capable 13-megapixel camera module, but it has also implemented these parts relatively well, inside a chassis that is sturdily built and portable despite the handset's big proportions. If we think about what a device like the HTC One Max provides over the Xplay -- better software, better speakers, more aluminum, fewer gimmicks, pogo pins for attaching a power case -- we'd have to conclude that the One Max is superior, but not necessarily to the degree that we'd pay an extra $300 for it. That's not to say that HTC is ripping us off; there could be many reasons why its One Max is more expensive than the Xplay -- perhaps things like shipping and tax costs -- but the extra money doesn't buy much in the way of better hardware. One thing's for certain: China is becoming better at making premium phones that will translate globally, and Vivo is continuing to makeinteresting devices, even if the Xplay slightly falls short, so we'll definitely be leaving some room in our suitcase the next time we travel in that direction.

Sunday, October 20, 2013

SwiftKey 4.3 merges smartphone and tablet apps, introduces custom keyboard layouts

After conducting some extensive user experience (UX) testing and feedback, SwiftKey unveiled version 4.3 of its popular virtual keyboard. Under the new “stigma” called “Layouts for Living,” the company introduced a huge variety of keyboard layouts that can be used in various situations. For instance, commuters in cramped trains may want to type one-handed with their left thumb, while a professional writing a document on a tablet may want to type with both thumbs.
SwiftKey 4.3 (in beta now) supports all of these modes, and best of all – you can customize keyboard the way you want to. Or go for one of the three presets:
  • Compact – which minimizes the width of the keyboard and allows for easier typing with one hand or gesture typing using SwiftKey Flow.
  • Full – that mimics two-handed typing on a physical keyboard, with keys being placed closer together.
  • Thumb – which is made for people typing on tablets or phablets in landscape mode. This mode splits the keyboard into two sections to enable fast, comfortable typing with both thumbs.
Finally, SwiftKey has merged the phone and tablet apps into a single application to give a “seamless experience across all device sizes.”

Tuesday, August 20, 2013

Samsung, The True Ruler of the Android Kingdom

Android has been a hot topic lately, with some arguing that it may become a unilateral smartphone superpower and others arguing that it has already peaked in the US market. A lot of thisconversation seems to assume that Android’s (and by extension, Google’s) gain is Apple’s loss and vice-versa. We believe that the situation is more complex than that.
Two facts about Android are now well established: 1) Android smartphones now dominate many markets in terms of device shipments, but 2) The market for Android devices is famously fragmented. What’s less well-established is how and when all of those Android devices are being used and the implications of that for participants in the Android ecosystem and beyond. Those are the topics that we tackle in this post with a particular focus on Samsung devices and how their owners compare to users of other Android devices.

Smartphones Dominate On Android

This posts builds on a previous one we did exploring how people use iOS smartphones and tablets. As we will show, there are many similarities in usage patterns across the two operating systems, but one big difference is the overall breakdown between smartphones and tablets. In this May sample of 45,340 Android devices (of the 576 million Flurry measures), 88% were phones and 12% were tablets. The share of devices represented by smartphones is significantly greater than in our iOS sample, in which 72% of devices were phones. The emphasis on phones over tablets was even greater among Samsung devices in our sample: 91% were smartphones and 9% were tablets.
FLR130801 Android Sm1ACC4E resized 600
As in our previous post, we started our analysis by considering how the smartphone versus tablet distribution varies by psychographic segment. These are Personas, developed by Flurry, in which device users are assigned to segments based on their app usage. An individual person may be in more than one Persona because they over-index on a variety of types of apps. Those who own more than one device may not be assigned to the same Personas on all of their devices because their app usage patterns may not be the same across devices.
The Personas shown above the “Everyone” bar in the graph below skew more toward phones than the general population of Android device owners, while the Personas shown below the “Everyone” bar skew more toward tablets. (Android device ownership patterns for Personas not shown are not statistically different from those shown for “Everyone.”) In general, these follow a similar pattern to the one we saw for iOS. On-the-move type Personas, including Avid Runners, skew toward phones and more home-bound personas, such as Pet Owners, skew more toward tablets.
FLR130801 AndroidTabletsHomeUse v1 resized 600
Within that broader pattern, there were differences based on the particular Android smartphone or tablet that a person owns. Samsung is the dominant manufacturer of Android devices. Its phones represented 59% of the phones in our overall sample of Android phones, and its tablets represented 42% of the tablets in our sample. Both its products and its promotion suggest that Samsung attempts to differentiate itself from other devices that share the Android operating system, and those differences were reflected in persona memberships. 

Samsung Is Building A Unique and Attractive Audience

Owners of Samsung devices were disproportionately likely to be in many personas, including some of those most sought-after by advertisers (e.g., Business Travelers and Moms). Since Persona memberships are based on over-indexing for time spent in particular types of apps, this suggests that Samsung device owners are generally more enthusiastic app users than owners of other brands of Android smartphones and tablets.
FLR130801 SamsungOwnersEnthusiastic v3 resized 600
Overall, owners of Android tablets spent 64% more time using apps than owners of Android smartphones. This ratio varied by category, as shown in the chart below. For example, owners of Android smartphones spent more than five times as much time, on average, in Business apps as owners of Android tablets. Sports and Photography were other categories that heavily favored phones. As with iOS, Education and Games skewed more toward tablets. (Average time spent using app categories not shown does not differ in a statistically significant way between Android smartphones and tablets.)
FLR130801 RatioTimeSpentAndroid v1 resized 600
Once again there was variation by manufacturer. Overall, owners of Samsung phones spent 14% more time using apps than owners of other Android phones and owners of Samsung tablets spent 10% more time using apps than owners of other Android tablets. The particular categories of apps where time spent was greater for Samsung phones were News Magazines, Tools, Health and Fitness, Photography, and Education. Owners of Samsung tablets spent more time than owners of other Android tablets in Communication (e.g., voice over IP and texting) apps.
Android app use peaks between 8 and 11 pm. Comparing the two types of Android devices, a greater share of tablet use takes place from 3pm until 11 pm and a greater share of phone use takes place from 11 am to 3 pm and overnight. While the overall amount of time spent on Samsung devices is greater than for other Android smartphones and tablets, the overall time distribution throughout the day is similar.
FLR130801 AndroidTimeAllocation v1 resized 600

Can Samsung Compete At Both Ends Of The Market?

As this and our previous post have shown, while smartphones capture more time in specific app categories, such as Navigation and Photography, those tend to be categories of apps used in short bursts. Tablets are favored for longer-duration app categories, such as Games and Education, and so, on average, tablet users spend more total time using apps than smartphone users. That makes tablets particularly interesting to content creators and to advertisers.
Samsung is the dominant manufacturer of Android devices. As shown in this post, it is attracting a unique audience relative to other Android devices. Owners of Samsung devices spend more time in apps than owners of other Android devices, and they are also disproportionately likely to be members of psychographic segments (Personas) that are attractive to advertisers. In those respects, they are more similar to owners of iOS devices than owners of other Android devices are.
But compared to iOS, a smaller share of Android devices are tablets, and that percentage is even smaller for Samsung devices than for Android as a whole. So the question is: will Samsung make as big of an impact in the tablet market as it has in the smartphone market?
In some ways, this comes down to a question of how it will balance its resources between two different types of markets: relatively more affluent countries that were early adopters of connected devices so new growth is now coming mainly from tablet adoption versus less affluent countries where smartphone penetration is still relatively low, but growing quickly.
A focus on tablets could enable Samsung to better develop more of a true ecosystem of its own (especially considering that they can include connected TVs as part of that) and the higher profits that go with that. Riding the wave of global smartphone growth is more of a high volume / low margin strategy. Of course, they could try to compete at both ends of the market, but each individually may require a lot of resources because of Apple’s (and to a lesser extent, Amazon’s) strength in the tablet market and the number of hungry competitors anxious to grow along with the Android smartphone market. If they can do both, they will rule the Android Kingdom, and Samsung, rather than Google, will pose the greater threat to Apple.