Product
Oppo F31 Pro+
Oppo F31 Pro+
Oppo R9s
Oppo R9s
Battery
Charging 80W wired, 13.5W PD, 44W UFCS, 33W PPS, 42% in 20 min 10W reverse wired 20W wired
Type Si/C Li-Ion 7000 mAh Li-Po 3010 mAh, non-removable
Body
Build - Glass front (Gorilla Glass 5), aluminum back, aluminum frame
Dimensions 163.1 x 77.6 x 7.7 mm or 7.9 mm 153 x 74.3 x 6.6 mm (6.02 x 2.93 x 0.26 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 195 or 204 g (6.88 oz) 145 g (5.11 oz)
  IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions -
Comms
Bluetooth 5.2, A2DP, LE, aptX HD 4.0, A2DP
Infrared port Yes -
NFC No No
Positioning GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS GPS
Radio No No
USB USB Type-C 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection AGC DT-Star D+ Corning Gorrila Glass 5
Resolution 1280 x 2800 pixels, 19.5:9 ratio (~453 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 6.8 inches, 112.8 cm2 (~89.1% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~73.4% screen-to-body ratio)
Type AMOLED, 1B colors, 120Hz, 1600 nits (HBM) AMOLED
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2025, September 16 2016, October. Released 2016, October
Status Available. Released 2025, September 16 Discontinued
Main Camera
Dual 50 MP, f/1.8, (wide), PDAF, OIS 2 MP, f/2.4, (depth) -
Features Color spectrum sensor, LED flash, HDR, panorama LED flash, HDR, panorama
Single - 16 MP, f/1.7, 1/2.8", 1.12µm, dual pixel PDAF
Video 4K@30fps, 1080p@30/60/120fps, gyro-EIS, OIS 4K@30fps, 1080p@30fps
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 256GB 8GB RAM, 256GB 12GB RAM 64GB 4GB RAM
  UFS 3.1 eMMC 5.1
Misc
Colors Festival Pink, Himalayan White, Gemstone Blue Black, Gold, Rose Gold, Red
Models CPH2757 CPH1607, R9sk, R9s
SAR 1.16 W/kg (head)     0.99 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 19, 28, 38, 40, 41, 42, 48 1, 2, 3, 4, 5, 8, 38, 39, 40, 41
5G bands 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / HSPA / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE
  - CDMA2000 1xEV-DO & TD-SCDMA
Our Tests
Audio quality - Noise -93.3dB / Crosstalk -93.5dB
Battery (old) - Endurance rating 74h
Camera - Photo / Video
Display - Contrast ratio: 12844 (nominal), 3.352 (sunlight)
Loudspeaker - Voice 64dB / Noise 71dB / Ring 76dB
Performance - GFXBench: 3.4fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm) Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU Octa-core (1x2.63 GHz Cortex-A715 & 3x2.4 GHz Cortex-A715 & 4x1.8 GHz Cortex-A510) Octa-core 2.0 GHz Cortex-A53
GPU Adreno 720 Adreno 506
OS Android 15, ColorOS 15 Android 6.0.1 (Marshmallow)
Selfie camera
Features Panorama -
Single 32 MP, f/2.4, (wide) 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video 1080p@30fps, gyro-EIS 1080p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes