Phone Comparison - Apple iPhone 6s vs Oppo A57 vs Xiaomi Redmi 4X

Price Comparison (India) - -

general General Info

Manufacturer Apple Oppo Xiaomi
Announced September 2015 November 2016 February 2017
Status Available - September 2015 Available - January 2017 Available - March 2017
Price Rs. 41,999 ($617.63) [Similarly Priced] Rs. 14,990 ($240.00) [Similarly Priced] Rs. 6,790 ($100.00) [Similarly Priced]
Colors Space Gray, Silver, Gold, Rose Gold Gold, Rose Gold Cherry Pink, Champagne Gold, Matte Black
Form Factor Candybar Candybar Candybar
Dimension 138.3 x 67.1 x 7.1 mm
(5.44 x 2.64 x 0.28 in)
149.1 x 72.9 x 7.65 mm
(5.87 x 2.87 x 0.3 in)
139.24 x 69.96 x 8.65 mm
(5.48 x 2.75 x 0.34 in)
Weight 143 g (5.04 oz) 147 g (5.19 oz) 150 g (5.29 oz)
SIM Type - Dual-SIM Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card)
2G Network GSM 850 / 900 / 1800 / 1900
CDMA 800 / 1700 / 1900 / 2100
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO - A59m
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1700 / 1900 / 2100
CDMA2000 1xEV-DO
HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700) - A1688
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(
LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Taiwan
SAR US 1.14 W/kg (head)
1.14 W/kg (body)
- W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
SAR EU 0.87 W/kg (head)
0.98 W/kg (body)
- W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail, IM
Build Features - Fingerprint sensor (TouchID v2)
- 3D Touch display
- Apple Pay (Visa, MasterCard, AMEX certified)
- Fingerprint Sensor
- Metal Build
- 2.5D Curved Glass
- Fingerprint Sensor
- Infrared Sensor
- Metal Build
- 2.5D Curved Glass
Notification LED - Yes Yes

hardware Hardware and OS

OS iOS 9 Android OS, v6.0 (Marshmallow) Android OS, v6.0.1 (Marshmallow)
User Interface - ColorOS 3.0 MIUI 8
Processor 2 GHz Dual-core, Apple A9 Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435
GPU - Adreno 505 Adreno 505
RAM 2 GB 3 GB 2/3 GB
Internal Memory 16/64/128 GB 32 GB 16/32 GB
External Memory No microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 128 GB (uses SIM 2 slot)

display Display

Type LED-backlit IPS LCD, Capacitive Touchscreen, Ion-Strengthened Glass, Oleophobic Coating IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 5.2 inches 5.0 inches
Resolution 750 x 1334 pixels (326 ppi) 720 x 1280 pixels (282 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 65.45% 68.79% 70.62%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No FM radio FM Radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 12 MP, 4608 x 2592 pixels 13 MP 13 MP, 4160 x 3120 pixels
Flash Real-tone Flash LED Flash Dual-LED (dual Tone)
Features Phase-Detection AutoFocus, Geo-tagging, Simultaneous HD Video And Image Recording, Touch Focus, Face/smile Detection, HDR (Photo/Panorama) Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Phase Detection Autofocus, f/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video 2160p@30fps, 1080p@60fps, 720p@240fps 1080p@30fps 1080p@30fps
Front Camera 5 MP, 1080p@30fps, 720p@240fps [Similar] 16 MP [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, EV-DO Rev.A 3.1 Mbps HSPA, LTE, VoLTE HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, VoLTE
Bluetooth v4.1, A2DP, LE v4.1, A2DP v4.2, A2DP, EDR, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot Wi-Fi 802.11 a/b/g/n, hotspot Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
USB v2.0, reversible connector microUSB v2.0, USB Host microUSB v2.0, USB OTG
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS Yes, with A-GPS, GLONASS, BDS
Browser HTML5 (Safari) HTML5 HTML5

memory User Memory

Internal 16/64/128 GB, 2 GB RAM 32 GB, 3 GB RAM 16/32 GB, 2/3 GB RAM
Expandable Storage No microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 128 GB (uses SIM 2 slot)
USB OTG - Supported Supported

Apps Sensors

Fingerprint fingerprint 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 not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery (6.9 Wh) Non-removable Li-Ion Battery Non-removable Li-Ion Battery
Capacity 1715 mAh 2900 mAh 4100 mAh
Stand by Up to 240 h (3G) - -
Talk Time Up to 14 h (3G) - -