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Oppo R7 Lite vs Oppo A57

2G Network Sim1: GSM 850 / 900 / 1800 / 1900 Sim2: GSM 850 / 900 / 1800 / 1900 SIM1: SIM1 GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 7(2600), 8(900), 40(2300) LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 143 x 71 x 6.3 mm 163.7 x 75 x 8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 147 g 187 g  
Display Type AMOLED capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   60Hz  
Display Size 5.0 inches, 720 x 1280 pixels (~294 ppi pixel density) 6.53 Inches   720 x 1612 Pixels (~270 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 3
Memory 16GB built-in 64GB Built-in, 3GB RAM  
Card slot microSDXC  
RAM 2GB RAM
GPRS Yes Yes
EDGE Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot  
BlueTooth Bluetooth v4.0 v5.0 with A2DP, LE  
USB USB (microUSB v2.0, USB Host) USB-C port  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera 13 MP, 4128 x 3096 pixels, Schneider-Kreuznach optics, phase detection, autofocus, LED flash, Geo-tagging, touch focus, face detection, panorama, HDR, Video 1080p@30fps, Dual 13 MP, f/2.2, 26mm (wide), 1/3.06", AF + 2 MP, f/2.4, (depth), LED Flash   Geo-tagging, touch focus, face detection, HDR, panorama, Video (1080p@30fps)  
Front Camera 8 MP 8 MP, f/2.0, (wide), HDR, Video (1080p@30fps)  
OS Android OS, v5.1 (Lollipop) Android 11 OS  
Chipset Qualcomm MSM89 MediaTek MT6765G Helio G35 (12 nm)  
Processor 1.5 GHz Quad-Core Cortex-A53, 1.0 GHz Quad-Core Cortex-A53 Octa-core (4 x 2.3 GHz Cortex-A53 + 4 x 1.8 GHz Cortex-A53)  
GPU GPU: Adreno 405 PowerVR GE8320  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, FingerPrint, Proximity  
Browser HTML5 HTML5  
Sound 3.5mm audio jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Speaker Phone  
Colors Golden, Silver Glowing Green, Glowing Black  
Battery 2320 mAh (Li-Po Non removable), 5000 mAh   - Fast charging 33W, 50% in 30 min (advertised)  
Misc GPS + A-GPS support, Fast battery charging: 75% in 30 min, Dual SIM + Nano-SIM / Micro-SIM, dual stand-by), Active noise cancellation with dedicated mic, Document viewer, Photo/video editor, Google Search, Maps, Gmail, Youtube, Calendar, Speakerphone SMS (threaded view), MMS, Email, Push Email   IPX4 water resistant, IP5X dust resistant ,Glass front, Plastic frame, Plastic back, Document viewer, Photo/video editor