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Huawei P9 Plus 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 LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 152.2 x 75.3 x 7 mm 163.7 x 75 x 8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight N/a 187 g  
Display Type Super AMOLED capacitive touchscreen, 16M colors, 3D Touch display, Emotion UI 4.1 IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   60Hz  
Display Size 5.5 inches, 1080 x 1920 pixels (~401 ppi pixel density) 6.53 Inches   720 x 1612 Pixels (~270 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 4
Memory 64GB built-in 64GB Built-in, 3GB RAM  
Card slot microSD card (support up to 128GB) (uses SIM 2 slot) microSDXC  
RAM 4GB RAM
GPRS Yes Yes
EDGE Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n/ac Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot  
BlueTooth Bluetooth v4.1 v5.0 with A2DP, LE  
USB USB (Type-C 1.0 reversible connector) USB-C port  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera 12 MP Dual, f/2.2, 27 mm, Leica optics, phase detection autofocus, dual-LED (dual tone) flash, Geo-tagging, touch focus, face/smile detection, panorama, HDR, Video (1080p@30fps), 8 MP, f/1.9, autofocus, 1080p 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, f/2.0, (wide), HDR, Video (1080p@30fps)  
OS Android OS, v6.0 (Marshmallow) Android 11 OS  
Chipset HiSilicon Kirin 9 MediaTek MT6765G Helio G35 (12 nm)  
Processor 2.5 GHz Quad-Core Cortex-A72, 1.8 GHz Quad-Core Cortex-A53 Octa-core (4 x 2.3 GHz Cortex-A53 + 4 x 1.8 GHz Cortex-A53)  
GPU GPU: Mali-T880 MP4 PowerVR GE8320  
Sensors Accelerometer, gyro, proximity, compass, Fingerprint Accelerometer, Compass, FingerPrint, Proximity  
Browser HTML5 HTML5  
Sound FM radio (Not Yet Confirmed), 3.5mm Jack, MP3/eAAC+/WMA/WAV/Flac player, XviD/MP4/H.264/WMV player, YouTube, Google Talk, Google Search, Maps, Gmail, Games 3.5mm Audio Jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Speaker Phone  
Colors Titanium Grey, Mystic Silver, Prestige Gold, Rose Gold Glowing Green, Glowing Black  
Battery 3400 mAh (Li-Po Non removable), 5000 mAh   - Fast charging 33W, 50% in 30 min (advertised)  
Misc GPS + A-GPS support, Organizer, Document viewer, Dual SIM + Nano-SIM, dual stand-by), Photo viewer/editor, Active noise cancellation with dedicated mic SMS (threaded view), MMS, Email, Push Email   IPX4 water resistant, IP5X dust resistant ,Glass front, Plastic frame, Plastic back, Document viewer, Photo/video editor