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Huawei Ascend Y540 vs Oppo Reno 15

2G Network SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
5G Network SA/NSA  
Dimensions 134.2 x 67 x 10.3 mm 158 x 74.8 x 7.77mm (Twilight Blue), 7.89mm (Aurora White)  
Sim Type Nano-SIM + Nano-SIM + eSIM (max 2 at a time)  
Weight N/a 197 g  
Display Type TFT capacitive touchscreen, 16M colors AMOLED Capacitive Touchscreen, 1B Colors   120Hz, HDR10+, 600 nits (typ), 1200 nits (HBM)  
Display Size 4.5 inches (~62.1% screen to body ratio), 480 x 854 pixels (~218 ppi pixel density) 6.59 Inches   1256 x 2760 Pixels (~460 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 7i  
Memory 4GB built-in 256GB Built-in, 12GB RAM, UFS 3.1  
Card slot No  
RAM 1GB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth with A2DP v5.4 with A2DP, LE, aptX HD, LHDC 5  
USB USB microUSB v2.0 USB Type-C 2.0, OTG  
NFC Yes  
GPS Yes + GPS, GLONASS, GALILEO, BDS, QZSS  
Main Camera 5 MP, 2592 x 1944 pixels, LED flash, Geo-tagging, Video, Triple Camera: 50 MP, f/1.8, 26mm (wide), PDAF, OIS + 50 MP, f/2.8, 80mm (telephoto), PDAF, OIS, 3.5x optical zoom + 8 MP, f/2.2, 15mm, (ultrawide), 1/4.0", AF, LED Flash   Color spectrum sensor, HDR, panorama, Video (4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, HDR)  
Front Camera VGA 50 MP, f/2.0, 18mm (ultrawide), AF, Panorama, HDR, Video (4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR)  
OS Android OS, v4.4.x (KitKat) Android 16 OS  
Chipset Mediatek GP Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)  
Processor 1.3 GHz Dual-Core Cortex-A7 Octa-core (1 x 2.8 GHz Cortex-720 + 4 x 2.4 GHz Cortex-720 + 3 x 1.8 GHz Cortex-520)  
GPU GPU: Mali-400 Adreno 722  
Sensors Accelerometer, proximity Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, BeaconLink calls via bluetooth, up to 200m  
Browser HTML5 HTML5  
Sound FM Radio (Not yet Confirmed), 3.5mm Jack, MP3/WAV/eAAC+ player, MP4/H.264 player, SNS integration, Games Speaker Phone  
Colors Black, White Twilight Blue, Aurora White  
Battery Stand-by up to 300 hrs 1950 mAh 6500 mAh   - Fast battery 80W wired, 80W UFCS, 55W PPS, 13.5W PD, 13.5W QC, 100% in 50 min, Reverse wired  
StandBy Time Stand-by up to 300 hrs 1950 mAh
TalkTime Talk-time up to 5 hrs
Misc Organizer, Document viewer, Photo viewer/editor, Voice memo/dial SMS(threaded view), MMS, Email, Push Mail, IM   NFC (market/region dependent), Glass front + Gorilla Glass 7i), aluminum frame, glass back, IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)