Phone Comparison - Samsung Galaxy A3 vs Microsoft Lumia 640 XL Dual SIM vs Xiaomi Mi 4i

general General Info

Manufacturer Samsung Microsoft Xiaomi
Announced October 2014 March 2015 April 2015
Status Available - November 2014 Available - April 2015 Available - April 2015
Price Rs. 14,265 ($209.78) [Similarly Priced] Rs. 12,999 ($191.16) [Similarly Priced] Rs. 8,999 ($132.34) [Similarly Priced]
Colors Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B Matte cyan, Orange, Black, Matte white, Glossy white Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 130.1 x 65.5 x 6.9 mm
( 5.12 x 2.58 x 0.27 in)
157.9 x 81.5 x 9 mm
(6.22 x 3.21 x 0.35 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 110.3 g (3.88.0.11 oz) 171 g (6.03 oz) 130 g (4.59 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE - LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.0 (Lollipop)
Processor Quad-core 1.2 GHz Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU - Adreno 305 Adreno 405
RAM 1 GB 1 GB 2 GB
Internal Memory 16 GB 8 GB 16/32 GB
External Memory microSD, up to 64 GB microSD, up to 128 GB No

display Display

Type Super AMOLED Capacitive Touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 5.7 inches 5.0 inches
Resolution 540 x 960 pixels (245 ppi) 720 x 1280 pixels (259 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 65.39% 68.88% 71.57%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio - FM radio FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP [Similar] 5 MP, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA 42.2/5.76 Mbps HSPA, LTE
Bluetooth v4.0, BLE, ANT+ v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 1 GB RAM 8 GB, 1 GB RAM 16/32 GB, 2 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 128 GB No

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Li-Ion Battery Li-Po Battery
Capacity 1900 mAh 3000 mAh 3120 mAh
Stand by - Up to 936 h (2G)
Up to 936 h (3G)
-
Talk Time - Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)
-