Compare / Oppo F31 Pro+ vs Oppo K15x
Oppo F31 Pro+ vs Oppo K15x
A side-by-side comparison of the Oppo F31 Pro+ and the Oppo K15x, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
Oppo F31 Pro+
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 900 / 2100
- 4G bands
- 1, 3, 5, 8, 19, 28, 38, 40, 41, 42, 48
- 5G bands
- 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
- Speed
- HSPA, LTE, 5G
Oppo K15x
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 850 / 900 / 2100
- 4G bands
- 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
- 5G bands
- 1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
- Speed
- HSPA, LTE, 5G
Oppo F31 Pro+
- Announced
- 2025, September 16
- Status
- Available. Released 2025, September 16
Oppo K15x
- Announced
- 2026, October 02
- Status
- Available. Released 2026, October 02
Oppo F31 Pro+
- Dimensions
- 163.1 x 77.6 x 7.7 mm or 7.9 mm
- Weight
- 195 or 204 g (6.88 oz)
- SIM
Nano-SIM + Nano-SIM
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
Oppo K15x
- Dimensions
- 166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
- Weight
- 212 g (7.48 oz)
- Build
- Glass front, plastic frame, plastic back
- SIM
Nano-SIM + Nano-SIM
IP64 dust tight and water resistant (water splashes)
Oppo F31 Pro+
- Type
- AMOLED, 1B colors, 120Hz, 1600 nits (HBM)
- Size
- 6.8 inches, 112.8 cm2 (~89.1% screen-to-body ratio)
- Resolution
- 1280 x 2800 pixels, 19.5:9 ratio (~453 ppi density)
- Protection
- AGC DT-Star D+
Oppo K15x
- Type
- IPS LCD, 120Hz, 1125 nits (peak)
- Size
- 6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
- Resolution
- 720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Oppo F31 Pro+
- OS
- Android 15, ColorOS 15
- Chipset
- Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm)
- CPU
- Octa-core (1x2.63 GHz Cortex-A715 & 3x2.4 GHz Cortex-A715 & 4x1.8 GHz Cortex-A510)
- GPU
- Adreno 720
Oppo K15x
- OS
- Android 16, ColorOS 16
- Chipset
- Mediatek Dimensity 6300 (6 nm)
- CPU
- Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
- GPU
- Mali-G57 MC2
Oppo F31 Pro+
- Card slot
- No
- Internal
256GB 8GB RAM, 256GB 12GB RAM
UFS 3.1
Oppo K15x
- Card slot
- microSDXC
- Internal
128GB 6GB RAM, 256GB 6GB RAM
UFS 2.2
Oppo F31 Pro+
- Dual
50 MP, f/1.8, (wide), PDAF, OIS
Auxiliary lens
- Features
- Color spectrum sensor, LED flash, HDR, panorama
- Video
- 4K@30fps, 1080p@30/60/120fps, gyro-EIS, OIS
Oppo K15x
- Dual
13 MP, f/2.2, 27mm (wide), AF
Auxiliary lens
- Features
- LED flash, HDR, panorama
- Video
- 1080p@30/60fps
Oppo F31 Pro+
- Single
- 32 MP, f/2.4, (wide)
- Features
- Panorama
- Video
- 1080p@30fps, gyro-EIS
Oppo K15x
- Single
- 5 MP, f/2.2, 27mm (wide)
- Features
- Panorama
- Video
- 1080p@30fps
Oppo F31 Pro+
- Loudspeaker
- Yes, with stereo speakers
- 3.5mm jack
- No
Oppo K15x
- Loudspeaker
- Yes
- 3.5mm jack
- Yes
Oppo F31 Pro+
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
- Bluetooth
- 5.2, A2DP, LE, aptX HD
- Positioning
- GPS (L1+L5)BDS (B1I+B1c+B2a)GALILEO (E1+E5a)QZSS (L1+L5)NavIC (L5)GLONASS
- NFC
- No
- Infrared port
- Yes
- Radio
- No
- USB
- USB Type-C 2.0, OTG
Oppo K15x
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac, dual-band
- Bluetooth
- 5.4, A2DP, LE, aptX HD
- Positioning
- GPS, GALILEO, GLONASS, QZSS
- NFC
- Yes
- Radio
- No
- USB
- USB Type-C 2.0, OTG
Oppo F31 Pro+
- Sensors
- Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Oppo K15x
- Sensors
- Fingerprint (side-mounted), accelerometer, proximity, compass
Oppo F31 Pro+
- Type
- Si/C Li-Ion 7000 mAh
- Charging
80W wired, 13.5W PD, 44W UFCS, 33W PPS, 42% in 20 min
10W reverse wired
Oppo K15x
- Type
- 6500 mAh
- Charging
45W wired
5W reverse wired
Oppo F31 Pro+
- Colors
- Festival Pink, Himalayan White, Gemstone Blue
- Models
- CPH2757
- SAR
- 1.16 W/kg (head) 0.99 W/kg (body)
- Price
- About 320 EUR
Oppo K15x
- Colors
- Purple, White
- Models
- PLT150
- Price
- About 230 EUR
How the Oppo F31 Pro+ and Oppo K15x differ
- The Oppo F31 Pro+ has a larger battery, 7000 mAh against 6500 mAh on the Oppo K15x.
- The Oppo F31 Pro+ has the bigger screen, 6.8 inches against 6.75 inches.
- The Oppo F31 Pro+ offers more RAM, up to 12 GB against 6 GB.
- The main cameras are 50 MP on the Oppo F31 Pro+ and 13 MP on the Oppo K15x.
- The Oppo K15x is the newer of the two, released in October 2026.