If you've broken your phone, you know the world needs more cheap, unlocked handsets that never seems to slow down a little puddles of goo when you use them. VeryKool lineup Infosonics' exists to fulfill needs, and the SL5000 ($ 229.80) Quantum is the company's best efforts yet. This is a great, affordable LTE phones for AT & T, T-Mobile, and carriers to use their networks, though it is outclassed by Moto G LTE.Physical Properties and Call Quality
The Verykool SL5000 is made of smooth white plastic, with a gray plastic surround. It was a little slick and slippery, but do not seem or feel too cheap; It is on par with many lower-end Nokia phones. At 5.63 by 2.87 by 0.35 inches (HWD) and 4.94 ounces, it's a little bit wide for one-handed use and has significant bezels around the screen, but too spectacular again, without . It is wider than both Moto G and Google Nexus 5, though.
The 854-by-480, 5-inch, 193 ppi LCD is passable, if not great. It is made of glass rather than plastic, so sharper and clearer than some other cheap phones, but it has poor viewing angle characteristics of devices with low cost. From an acute angle, you can easily see the edge backlight. And if you're used to 720p screen like the Moto G or many other current midrange phone, text will look both large and fuzzier than you.
The call by the earpiece sound a bit quiet, but very clear; The speakerphone is very quiet. There is a disproportionate amount of side tone, the echo of your voice back to your ear. Some people like that, some do not. Shipping via mic sounds great; cancellation of noise or background noise in a bit of a rushing river at the back of your voice, but your voice is just fine. Phone had no trouble connecting to, and speak with, a Bluetooth headset.
The phone has a wonderful layout band for a cheap unlock the phone. It 850/1700/1900 HSPA + 42 and LTE bands 2, 4, 12, and 17. That means it works beautifully, with maximum speed, the AT & T and T-Mobile network right now especially on T-Mobile. I tried it on T-Mobile, and got amazing 15-17Mbps download speed in Midtown Manhattan. This is not a good phone to take overseas, though, as you'll fall to slow EDGE data anywhere outside the US
Battery with 2,000mAh battery is very good for a phone this slim, 6 hours, 1 minute of LTE streaming on T-Mobile network. (The low-res screen helps battery life.) The battery is removable and replaceable.
Android and Performance
The Quantum operates only one stock version of Android 4.4 on a 1.2GHz Qualcomm Snapdragon 400 chipset. We see that the chipset in many midrange phones recently, and performance is on par with all of them, most notably with direct competitors Moto going G. Basic working just fine.
The Quantum operates only one unmolested version of Android 4.4; It does not receive an upgrade to Android 5.0 lollipop. There are only two bloatware apps, a catalog VeryKool app and a very useful app for managing privacy and device alerts you when other apps requesting privileges obtrusive.
I would say "Do not try any really heavy, high-end game" because of the lower-end processor, but not be able to anyway, because of the extremely limited internal memory of Quantum that. The Quantum only has 2GB of free, that's just not enough for photos, music, and high-end games all together. It is great that there is a microSD card slot under the back cover, and that worked with my 64GB SanDisk memory card, but you can not store active apps on a card.
The Quantum seems to have 8 megapixel main camera and 2-megapixel front camera, but they are weak. Under strong light, pictures taken with the main camera is washed out and pinkish. A wide dynamic range with clear sky creates horrible lens flare. Cloudy sky or indoor lighting causes the shutter speed to drop precipitously. In low light, things got blurry; in very low light, they just pitch black. Flash is decent in a pinch.
Video Recording also suffered from the inability of the camera to collect enough light. Both the main and front camera capture 720p video at 30 frames per second out, even look pretty dim results. In poor lighting, frame rates can drop as low as a bumpy 12 frames per second.
Video and audio playback are typical for Android devices. There is also an FM radio with seven preset, which works with the wired headset and is clear enough. Do not expect much quality audio from small back - port of the speaker, but the Snapdragon 400 chipset does not support 1080p video decoding. No wired way to get your videos onto the TV, but the phone is compatible with Chromecast.