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Voice Xtreme V40 vs Oppo Reno 15

2G Network 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSPDA 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  
Available Available. Released 2013, September
Dimensions 158 x 74.8 x 7.77mm (Twilight Blue), 7.89mm (Aurora White)  
Sim Type Dual SIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)  
Weight n/a 197 g  
Display Type IPS QHD Touchscreen, 16M colors, Multitouch AMOLED Capacitive Touchscreen, 1B Colors   120Hz, HDR10+, 600 nits (typ), 1200 nits (HBM)  
Display Size 4.5 inches, 540 X 960 Pixels 6.59 Inches   1256 x 2760 Pixels (~460 PPI)  
Protection Corning Gorilla Glass 7i  
Memory 4GB ROM + microSD card (supports up to 32GB) 256GB Built-in, 12GB RAM, UFS 3.1  
Card slot No  
RAM 512MB RAM
GPRS Yes, class 12
EDGE Yes, class 12
3G Yes, HSPDA R6 (21mbps, HSUPA 5.6mbps)
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth 2.1 v5.4 with A2DP, LE, aptX HD, LHDC 5  
USB Yes, microUSB USB Type-C 2.0, OTG  
NFC Yes  
GPS GPS + A-GPS Yes + GPS, GLONASS, GALILEO, BDS, QZSS  
Main Camera 8 MP Full focus, 2500 x 1900 pp, Flash Rear, continuous shooting, Face & smile detection, Video (720p30fps) 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 1.3 Mp 50 MP, f/2.0, 18mm (ultrawide), AF, Panorama, HDR, Video (4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR)  
OS Android 4.2 Jelly Bean Android 16 OS  
Chipset Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)  
Processor 1.2 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 Adreno 722  
Sensors Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, BeaconLink calls via bluetooth, up to 200m  
Browser HTML5 HTML5  
Radio FM radio
Sound 3.5mm HeadJack, Loud Speaker Speaker Phone  
Colors White, Black, Blue Twilight Blue, Aurora White  
Battery n/a 6500 mAh   - Fast battery 80W wired, 80W UFCS, 55W PPS, 13.5W PD, 13.5W QC, 100% in 50 min, Reverse wired  
StandBy Time Up to 14 days
TalkTime Up to 5 h
Misc 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)