Oppo F31 55 · Unboxing TN

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Oppo F31 55 · Unboxing TN

Technical sheet

Brand

Brand: Oppo
Aliases: CPH2781
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Release Date

Release date: September 2025, 1 year ago
Launch price: ₹ 22,999.00 ($ 239.21)

Design & Materials

Image gallery

Image gallery

Structure

Size: 75.0 mm • 158.2 mm • 8.0 mm
Weight: 185 g
Usable surface: 84 %
Materials: Plastic
Resistance certificates (dust, water): IP68, IP69 , MIL-STD-810H
Colors: White Blue Red
Repairability: Class A B C D E
Drop resistance: Class A B C D E • 270 drops without defects

Screen

Diagonal: 6.57"
Type: AMOLED
Aspect Ratio: 20:9
Resolution: 1080 x 2372 px • FHD+
Density: 264 ppi • Medium Density
Others: Hole-punch Notch Refresh rate 120 Hz Touch sampling rate 240 Hz Brightnes 600 cd/m² (typ) Peak brightness - 1000 cd/m² Max brightness HBM - 1400 cd/m² HDR10 DCI-P3 Full sRGB standard 10 Bits panel 2.5D curved glass screen AGC glass Corning Gorilla Glass 7i Capacitive Multi-touch Frameless

Performance & Hardware

Processor

Model: MediaTek Dimensity 6300
CPU: 2x2.4 GHz ARM Cortex•A76 +6x2.0 GHz ARM Cortex•A55
Type: Octa-Core
Nanometer: 6 nm
Frequency: 2.4 GHz
64 Bits: Yes

Graphics

GPU: Arm Mali-G57 MC2

RAM

RAM: 8 GB

Camera

Double rear camera

Standard: 1
Resolution: 50 Mpx
Aperture: ƒ/ 1.8
Sensor: --
Type: CMOS BSI
Pixel size: --
Flash: LED
Optical Stabilisation: Yes
Slow Motion Video: Yes, 120 fps

Connectivity

Bands

5G: n1 (2100), n3 (1800), n5 (850), n8 (900), n28b (700), n38 (2600), n40 (2300), n41 (2500), n77 (3700), n78 (3500)
4G LTE: B3 (1800), B5 (850), B8 (900), B19 (800), B28b (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B48 (TDD 3600), B66 (1700/2100)
3G: B1 (2100), B8 (900)
2G: B3 (1800), B8 (900)

SIM card

Type: Dual SIM Dual Standby (Nano SIM + Nano SIM) SIM cards (MiniSIM) can be cut to MicroSIM, MicroSIM can be cut to NanoSIM and a SIM can even be cut to a NanoSIM (although not recommended). Download this SIM Cutting Template and forget about having to ask your operator for a new SIM...

Wi-Fi

Standards: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac

Battery

Capacity: 7000 mAh
Type: Si-Carbon Li-Ion
Fast charge: Yes , 80.0W
Others: Non-removable
Efficiency: A G A
Runtime per charge: ~ 69h
Charge cycles: 1600 cycles

Software

Operating System: Android 15 ColorOS 15 (Android 15)
Google Services: With Google Mobile Services
Widevine L1: Yes
Updates: OS updates: 6 years