Xiaomi Redmi 3 vs Xiaomi Redmi 2a vs Xiaomi MI 1s

BASIC INFO
Model No - - MI 1s
Status Discontinued Discontinued Discontinued
Release Date 2016, January 2015, March 2012, August
Dimension 139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in) - 125 x 63 x 11.9 mm (4.92 x 2.48 x 0.47 in)
Weight 144 g (5.08 oz) - 149 g (5.26 oz)
Colors Various Various White, green, blue, red, violet, orange, gray
Body Metrial - - -
W & D Proof - - -
SIM Type Dual SIM (Micro-SIM/Nano-SIM, dual stand-by) - Mini-SIM
Technology GSM / CDMA / HSPA / EVDO / LTE - GSM / HSPA
OS Android OS, v5.1 (Lollipop) Android OS, v5.0 (Lollipop) Android 4.0 (Ice Cream Sandwich)
PROSESSING
Processor Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53 Quad-core 1.5 GHz Dual-core 1.7 GHz Scorpion
Chipset Qualcomm MSM8939v2 Snapdragon 616 - Qualcomm MSM8260 Snapdragon S3
GPU Adreno 405 - Adreno 220
MEMORY
RAM 2GB - 1 GB
Storage 16GB - 4 GB
Card Slot up to 128 GB (uses SIM 2 slot) 8 GB storage,1 GB RAM, microSD, up to 32 GB microSD, up to 32 GB
DISPLAY
Size 5 inches 720 x 1280 pixels, 4.7 inches 4.0 inches
Type IPS LCD capacitive touchscreen, 16M colors IPS LCD capacitive touchscreen, 16M colors TFT capacitive touchscreen, 16M colors
Resolation 720 x 1280 pixels - 480 x 854 pixels
PPI 294 ppi pixel density - 245 ppi pixel density
Multi touch Yes - MIUI 7.0 - Yes
Protection - - -
CAMERA
Primary 13 MP, 4128x3096 pixels, Autofocus 8 MP, 3264 x 2448 pixels, autofocus, LED flash 8 MP
Video Yes, 1080p@30fps Yes, 1080p@30fps Yes, 1080p@30fps
Flash LED flash - LED Flash
Features Geo-tagging, touch focus, face/smile detection, HDR, panorama - Geo-tagging, touch focus, face/smile detection, HDR
Selfie Yes, 5 MP Yes, 2 MP Yes, 2 MP
BATTERY
Battery Li-po Li-Ion 2200 mAh battery Li-Ion battery
Capacity 4100 mAh - 1930 mAh
Removable Non-removable - Yes
StandBy - - -
Talk Time - - -
Music Play - - -
Browsing - - -
Video Playback - - -
F Charging - - No
W Charging - - No
NETWORK
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 / 1900
GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
TD-SCDMA
HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) No
Speed HSPA, LTE, EV-DO Rev.A 3.1 Mbps - -
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, hotspot
BlueTooth v4.1, A2DP Yes, v4.0 with A2DP 2.1, A2DP
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB 2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS
NFC - - No
Audio jeck - - 3.5mm Jack
OTHERS
Sensors Accelerometer, gyro, proximity, compass - Accelerometer, proximity, compass
Radio Yes TBD No
SARUS - - -
SAREU - - -
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