Phone Comparison - Samsung I9100 Galaxy S II vs Xiaomi Mi 4S vs Xiaomi Redmi 3 Pro

general General Info

Manufacturer Samsung Xiaomi Xiaomi
Announced February 2011 February 2016 March 2016
Status Available - April 2011 Available - April 2016 Available - April 2016
Price - Rs. 15,400 ($225.99) [Similarly Priced] -
Colors Black, White, Pink Black, White, Gold, Purple Dark Gray, Silver, Gold
Form Factor Candybar Candybar Candybar
Dimension 125.3 x 66.1 x 8.5 mm
(4.93 x 2.6 x 0.33 in)
139.3 x 70.8 x 7.8 mm
(5.48 x 2.79 x 0.31 in)
139.3 x 69.6 x 8.5 mm
(5.48 x 2.74 x 0.33 in)
Weight 116 g (4.09 oz) 133 g (4.69 oz) 144 g (5.08 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA 1900 / 2000
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100
TD-SCDMA 1900 / 2000
HSDPA 850 / 1900 / 2100
4G Network - LTE band 1(2100), 3(1800), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging SMS, MMS, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM
Build Features - - Fingerprint Sensor
- Infrared Sensor
- Fingerprint Sensor
Notification LED - Yes -

hardware Hardware and OS

OS Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 Android OS, v6.0 (Marshmallow) Android OS, v5.1 (Lollipop)
Processor Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset Quad-core 1.44 GHz Cortex-A53 & dual-core 1.82 GHz Cortex-A57, Qualcomm MSM8992 Snapdragon 808 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8939v2 Snapdragon 616
GPU Mali-400MP Adreno 418 Adreno 405
RAM 1 GB 3 GB 3 GB
Internal Memory 16 GB/32 GB storage 64 GB 32 GB
External Memory microSD, up to 32GB, 8 GB included microSD, up to 128 GB (Uses SIM 2 Slot) microSD, up to 128 GB (uses SIM 2 slot)

display Display

Type Super AMOLED Plus capacitive touchscreen IPS LCD Capacitive Touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.3 inches 5.0 inches 5.0 inches
Resolution 480 x 800 pixels (217 ppi) 1080 x 1920 pixels (441 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 63.52% 69.75% 70.95%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS 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, 4160 x 3120 pixels
Flash LED flash Dual-LED (dual tone) LED Flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization Phase Detection Autofocus, f/2.0, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR Phase Detection Autofocus, f/2.0, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama
Video Yes, 1080p@30fps 1080p@30fps, 720p@120fps 1080p@30fps
Front Camera Yes, 2 MP [Similar] 5 MP, f/2.0, 1080p [Similar] 5 MP, f/2.2, 1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes Yes
Edge Class 12 Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA, LTE Cat4 150/50 Mbps HSPA, LTE, EV-DO Rev.A 3.1 Mbps
Bluetooth Yes, v3.0+HS v4.1, A2DP v4.1, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB Yes, v2.0 microUSB (MHL), USB On-the-go Type-C 1.0 reversible connector, Qualcomm Quick Charge 2.0 microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, BDS
Browser HTML HTML5 HTML5

memory User Memory

Internal 16GB/32GB storage, 1 GB RAM 64 GB, 3 GB RAM 32 GB, 3 GB RAM
Expandable Storage microSD, up to 32GB, 8 GB included microSD, up to 128 GB (Uses SIM 2 Slot) microSD, up to 128 GB (uses SIM 2 slot)
USB OTG Supported - -

Apps Sensors

Fingerprint fingerprint not supported fingerprint supported fingerprint 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 Standard battery, Li-Ion Non-removable Li-Ion Battery Non-removable Li-Ion Battery
Capacity 1650 mAh 3260 mAh 4100 mAh
Stand by Up to 710 h (2G)
Up to 610 h (3G)
- -
Talk Time Up to 18 h 20 min (2G)
Up to 8 h 40 min (3G)
- -