Oppo F31 vs Xiaomi Redmi 13 4g

Key Specs

Battery
-	5030 mAh
Display
-	6.79 inches (17.25 cm)
Front Camera
-	13 MP
Processor
-	MediaTek Helio G91 Ultra
RAM & Storage
-	6 GB RAM + 128 GB 8 GB RAM + 256 GB
Rear Camera
-	108 MP + 2 MP

Audio

Audio Jack
3.5 mm	-

Battery

Capacity
7000 mAh	5030 mAh
Quick Charging
80W SUPERVOOC fast charging	Yes, Fast, 33W: 50 % in 26 minutes
Removable
-	No
Standby Time
-	Up to 456 Hours(2G)
Standby time
-	Up to 456 Hours(2G)
USB Type-C
Yes	Yes

Camera

Front Camera
16GB	-
Rear Camera
50M P+ 2GB + 2GB	-

Design

Build Material
Aerospace-grade aluminum alloy	Back: Mineral Glass
Colours
Midnight Blue, Cloud Green, Bloom Red	Midnight Black, Sandy Gold, Pearl Pink, Ocean Blue
Height
-	168.6 mm
Ruggedness
-	Dust proof
Thickness
-	8.3 mm
Water Resistance
IP68/IP69 rating	-
Waterproof
-	Yes, Splash proof, IP53
Weight
-	205 grams
Width
-	76.28 mm

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Display

Aspect Ratio
-	20:9
Bezel-less display
-	Yes with punch-hole display
Brightness
-	450 nits
Display Type
2D curved AMOLED	IPS LCD
Pixel Density
-	396 ppi
Refresh Rate
120Hz	90 Hz
Resolution
1080 x 2412 pixels	1080x2460 px (FHD+)
Screen Size
6.57-inch	6.79 inches (17.25 cm)
Screen to Body Ratio (calculated)
-	85.26 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Setup
-	Single
Resolution
-	13 MP f/2.45, Wide Angle, Primary Camera

General

Brand
OPPO	Xiaomi
Custom UI
ColorOS 15	HyperOS
Launch Date
September 15, 2025	-
Model
F31	-
Operating System
Android 15	Android v14

Main Camera

Camera Features
-	Digital Zoom
Camera Setup
-	Dual
Flash
-	Yes, LED Flash
Image Resolution
-	12000 x 9000 Pixels
Resolution
-	108 MP f/1.75, Wide Angle, Primary Camera 2 MP f/2.4, Macro Camera
Shooting Modes
-	High Dynamic Range mode (HDR) Film Camera
Video Recording
-	Full HD @ 30 FPS HD @ 30 FPS

Multimedia

Audio Jack
-	3.5 mm
FM Radio
-	Yes
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
5.3	Yes, v5.4
GPS
-	Yes with A-GPS, Glonass
NFC
-	Yes
Network Support
5G	5G Not Supported, 4G, 3G, 2G
SIM 1
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
-	SIM1: Nano, SIM2: Nano (Hybrid)
SIM Slot(s)
Dual SIM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging
VoLTE
-	Yes
Wi-Fi
Wi-Fi 6	Yes, Wi-Fi 5 (802.11 b/g/n/ac) 5GHz
Wi-Fi Features
-	Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (2 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)
Chipset
-	MediaTek Helio G91 Ultra
Fabrication
-	12 nm
Graphics
-	Mali-G52 MC2
Processor
MediaTek Dimensity 7050 (6nm, octa-core)	-
Processor Fabrication
6 nm	-
RAM
6GB/8GB	6 GB / 8 GB
RAM Type
-	LPDDR4X
RAM type
-	LPDDR4X

Sensors

Fingerprint Sensor
Side-mounted fingerprint sensor	Yes
Fingerprint Sensor Position
-	Side
Other Sensors
-	Light sensor, Proximity sensor, Accelerometer, Compass

Storage

Expandable Memory
expandable via microSD up to 1TB	Yes, Up to 1 TB
Internal Memory
128GB/256GB	128 GB / 256 GB
Storage Type
UFS 2.2	eMMC 5.1