Phone Comparison - Asus Zenfone 4 vs Xiaomi Redmi 1S vs OPPO Neo R831K

general General Info

Manufacturer Asus Xiaomi Oppo
Announced January 2014 May 2014 August 2014
Status Available - June 2014 Available - May 2014 Available - August 2014
Colors Black, White, Red, Blue, Yellow Black, Chinese Red, Metallic Gray/ blue, green, yellow panels White, Black
Form Factor Candybar Candybar Candybar
Dimension 124.4 x 61.4 x 6.3-11.2
(4.9 x 2.42 x 0.25-0.44)
137 x 69 x 9.9 mm
(5.39 x 2.72 x 0.39 in)
132 x 65.8 x 9.2 mm
(5.2 x 2.59 x 0.36 in)
Weight 115 g (4.06 oz) 158 g (5.57 oz) 130 g (4.59 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 1900 / 2100 HSDPA 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v4.3 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean) based Color OS
Processor Dual-core 1.2 GHz, Intel Atom Z2520 Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8228 Snapdragon Dual-core 1.3 GHz
GPU PowerVR SGX544MP2 Adreno 305 -
RAM 1 GB 1 GB 1 GB
Internal Memory 8 GB 8 GB 4 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.7 inches 4.5 inches
Resolution 480 x 800 pixels (233 ppi) 720 x 1280 pixels (312 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 59.74% 64.61% 64.07%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 x 1944 pixels 8 MP, 3264 x 2448 pixels 5 MP, 2592 x 1944 pixels
Flash No LED flash LED Flash
Features Auto focus, Geo-tagging, Panorama Auto focus, 1.4 µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR
Video Yes, 1080p@30fps 1080p@30fps Yes
Front Camera Yes, VGA [Similar] 1.3 MP, 720p@30fps [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps HSDPA, HSUPA HSPA+
Bluetooth Yes, v4.0 with A2DP, EDR v4.0, A2DP, LE v2.1, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 microUSB v2.0, USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS Yes, with A-GPS
Browser HTML HTML5 HTML

memory User Memory

Internal 8 GB, 1 GB RAM 8 GB, 1 GB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - Supported -

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 not supported NFC not supported NFC not supported

battery Battery

Type Li-Po Battery Li-Po Battery Li-Ion Battery
Capacity 1200/1600 mAh 2000 mAh 1900 mAh
Stand by Up to 192 h - -
Talk Time Up to 10 h - -