Compare / Oppo F31 Pro vs Oppo K15s

Oppo F31 Pro vs Oppo K15s

A side-by-side comparison of the Oppo F31 Pro and the Oppo K15s, covering display, chipset, memory, camera, battery and build.

Oppo F31 Pro
Oppo
Oppo F31 Pro
Oppo K15s
Oppo
Oppo K15s

Overview

Display
Oppo F31 Pro
6.57inch
AMOLED · 120 Hz
1080 × 2372 · 397 PPI
Oppo K15s
6.57inch
AMOLED · 120 Hz
1080 × 2372 · 397 PPI
Chip
Oppo F31 Pro
Mediatek Dimensity 7300 (4 nm)
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Mali-G615 MC2 · Android 15
Oppo K15s
Mediatek Dimensity 6360 Max (6 nm)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Mali-G57 MC2 · Android 16
Memory
Oppo F31 Pro
8 / 12GB RAM
128 GB · 256 GB storage
No card slot
Oppo K15s
6 / 8GB RAM
128 GB · 256 GB storage
microSDXC
Camera
Oppo F31 Pro
50MP
32 MP selfie
4K@30fps video
Oppo K15s
50MP
8 MP selfie
1080p@30/60fps video
Battery
Oppo F31 Pro
7,000mAh
80 W wired
Oppo K15s
8,000mAh
45 W wired
Build
Oppo F31 Pro
190g
158.2 × 75 × 8 mm
IP68
Oppo K15s
205g
159.1 × 75.8 × 8.8 mm
IP68
Connectivity
Oppo F31 Pro
5GWi-Fi 6Bluetooth 5.4Nano-SIM + Nano-SIMUSB Type-C 2.0
Oppo K15s
5GWi-Fi 5Bluetooth 5.4NFCNano-SIM + Nano-SIMUSB Type-C 2.0

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 K15s

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, 42, 48
5G bands
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

Oppo F31 Pro

Announced
2025, September 16
Status
Available. Released 2025, September 16

Oppo K15s

Announced
2026, October 02
Status
Available. Released 2026, October 02

Oppo F31 Pro

Dimensions
158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 in)
Weight
190 g (6.70 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 K15s

Dimensions
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
Weight
205 g (7.23 oz)
Build
Glass front, plastic frame, plastic back
SIM

Nano-SIM + Nano-SIM

IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

Drop resistant up to 1.8m

Oppo F31 Pro

Type
AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM)
Size
6.57 inches, 105.0 cm2 (~88.5% screen-to-body ratio)
Resolution
1080 x 2372 pixels (~397 ppi density)
Protection
DT-Star D+

Oppo K15s

Type
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
Size
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
Resolution
1080 x 2372 pixels (~397 ppi density)

Oppo F31 Pro

OS
Android 15, ColorOS 15
Chipset
Mediatek Dimensity 7300 (4 nm)
CPU
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
Mali-G615 MC2

Oppo K15s

OS
Android 16, ColorOS 16
Chipset
Mediatek Dimensity 6360 Max (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

128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM

UFS 3.1

Oppo K15s

Card slot
microSDXC
Internal

128GB 6GB RAM, 256GB 8GB 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 K15s

Dual

50 MP, f/1.9, 25mm (wide), PDAF

Auxiliary lens

Features
LED flash, HDR, panorama
Video
1080p@30/60fps

Oppo F31 Pro

Single
32 MP, f/2.4, (wide)
Features
Panorama
Video
4K@30fps, 1080p@30/60fps, gyro-EIS

Oppo K15s

Single
8 MP, f/2.1, 25mm (wide)
Features
Panorama
Video
1080p@30fps

Oppo F31 Pro

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Oppo K15s

Loudspeaker
Yes
3.5mm jack
No

Oppo F31 Pro

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD
Positioning
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
No
Infrared port
Yes
Radio
No
USB
USB Type-C 2.0, OTG

Oppo K15s

WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD
Positioning
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 2.0, OTG

Oppo F31 Pro

Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Oppo K15s

Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Oppo F31 Pro

Type
Si/C Li-Ion 7000 mAh
Charging

80W wired, 33W PPS, 13.5W PD, 13.5W QC, UFCS, 37% in 20 min

10W reverse wired

Oppo K15s

Type
Si/C Li-Ion 8000 mAh
Charging

45W wired, 45W UFCS, 45W PPS, 13.5W PD

Reverse wired

Oppo F31 Pro

Colors
Space Grey, Desert Gold
Models
CPH2763
SAR
1.13 W/kg (head)     0.84 W/kg (body)    
Price
About 260 EUR

Oppo K15s

Colors
Gray, Purple
Models
PYE130
Price
About 270 EUR

How the Oppo F31 Pro and Oppo K15s differ

  • The Oppo K15s has a larger battery, 8000 mAh against 7000 mAh on the Oppo F31 Pro.
  • The Oppo F31 Pro offers more RAM, up to 12 GB against 8 GB.
  • The Oppo K15s is the newer of the two, released in October 2026.