Redmi K20 (Carbon Black, 6GB RAM, 128GB Storage)

• Country Of Origin - India, China
• 48+13+8MP primary camera with 20MP front-facing camera
• 16.23 centimetres (6.39-inch) AMOLED capacitive touchscreen with 2340 x 1080 pixels resolution, 403 PPI pixel density
• Memory, Storage & SIM: 6GB RAM | 128GB storage | Dual SIM with dual standby (4G+4G)
• Android v9 Pie operating system (Upgradable to Android Q) with 2.2GHz Qualcomm Snapdragon 730 Octa-core processor, Adreno 618 GPU
• 4000mAH lithium-polymer battery
• 1-year manufacturer warranty for device and 6 months manufacturer warranty for in-box accessories including batteries from the date of purchase
• Box also includes: Adapter, USB cable, warranty card, user guide, SIM insertion tool, Back cover
• Powered by the Qualcomm 730 Processor and Adreno 618 GPU with Game Turbo 2.0.

Technical Details

OS	Android
RAM	6 GB
Product Dimensions	15.7 x 0.9 x 7.4 cm; 191 Grams
Batteries	1 Lithium Polymer batteries required. (included)
Item model number	Redmi K20
Wireless communication technologies	Bluetooth, WiFi Hotspot
Connectivity technologies	802.11 a/b/g/n/ac wifi version, GPS/AGPS, GLONASS, Network: 2G, 3G,4G VOLTE, Bluetooth v5.0, Micro USB 2.0 OTG
Special features	Dual SIM, Proximity, Infrared, Ambient light sensor, E compass, GPS, In-display Fingerprint Sensor, E-mail, Accelerometer, Gyroscope, FM Radio, Video Player, Music Player
Display technology	Yes, Capacitive Touchscreen, Multi-touch, Corning Gorilla Glass v5, Pixel Density 403 PPI, Aspect Ratio 19.5:9
Other display features	Wireless
Device interface - primary	Touchscreen
Resolution	2340 x 1080
Other camera features	13 MP
Form factor	Touchscreen Phone
Colour	Carbon Black
Battery Power Rating	4000
What's in the box	Handset, Adapter, USB cable, warranty card, user guide, SIM insertion tool, Back cover
Manufacturer	Xiaomi
Item Weight	191 g

Product Review

Pros -

1. like the rounded edges of the display (viewing area).

2. Battery backup is surprisingly good - lasts at least 2 days with 8+ hours screen on in total (not tested with 4G, use Wifi 8 hours in total)

3. Audio is good, hi-res audio performance is good.

4. Speakers and mic are very good - very well pronounced

5. Device does not heat up with demanding apps and while quick charging - This is good, it takes about 2 hrs for a full charge from 1% to 100%

Cons -

1. Installing any screen protector will reduce the fingerprint sensors ability to quickly unlock (i had to delete profiles several times, other things that matter - sweaty hands, rough fingers all matter - The technology is still to evolve)

2. Front Facing camera sucks, extremely poor image output - This is a big disappointment.

3. Back cameras too suck big time, grainy and the software is buggy does heavy post-processing. - Older versions of Mi phones had a better back camera and far better optics

4. Slow motion video is a joke !! 2 seconds only due to hardware limitation, workaround use 120 FPS for longer videos

5. Screen flickers while browsing (very poor refresh rate, very prominent while browsing at max brightness)

6. Body is prone to scratches, by design, you must either use provided back case or buy one outside

7. MIUI sucks, don't install any upgrades, it slows the phone down.

8. The pre-loaded apps are burned into the ROM, like music, app installer, mi pay and other junk (which eat up compute resources - there are no inbuilt options to disable or uninstall those) - remember you cannot add storage to your device.

9. The light sensors are buggy in this phone, could be s/w glitch, it never saves your settings beyond a day, however, the ambient sensors work fine and are pretty responsive.