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Choosing between two smartphones? Use MobilesIQ to compare mobile phone specifications, prices, processors, camera systems, display quality, RAM, storage and battery capacity side by side.
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Specification
OPPO F31 5G
—
—
Apple iPhone 18 Pro Max
—
—
Brand
OPPO
Apple
Release Date
—
—
Operating System
Android 15
iOS 27
Processor
MediaTek Dimensity 6300
Apple A20 Pro
Processor Speed
Up to 2.4 GHz
Not officially disclosed; 6-core CPU (2 performance + 4 efficiency cores)
Screen Size
6.57 inches (approximately 6.5 inches)
6.9 inches
Display
AMOLED, flat display
Super Retina XDR LTPO OLED
Resolution
1080 × 2372 pixels (FHD+)
2868 × 1320 pixels (460 ppi)
Refresh Rate
120Hz
120Hz
Brightness
Up to 1,400 nits (high-brightness mode)
1,000 nits typical; 1,600 nits HDR peak; 3,000 nits outdoor peak
RAM
8GB LPDDR4X
Not officially disclosed
Storage
8GB + 128GB, 8GB + 256GB
12GB + 256GB, 12GB + 512GB, 12GB + 1TB
Battery
7,000 mAh, non-removable
Up to 43 hours video playback; up to 38 hours streamed video playback
Fast Charging
Yes
Yes
Wireless Charging
No
Yes
Colour
Cloud Green, Midnight Blue, Bloom Red
Black, Silver, Glacier, Burgundy
Rear Camera
50MP main (f/1.8) + 2MP secondary (f/2.4)
Triple 48 MP camera system: 48 MP Fusion Main with variable aperture + 48 MP Ultra Wide + 48 MP Telephoto
Front Camera
16MP (f/2.4)
18 MP Center Stage camera with autofocus
Network
5G, 4G LTE, 3G, 2G
5G, 4G LTE, 3G, 2G
SIM
Dual Nano-SIM
Nano-SIM + eSIM; dual eSIM support (market dependent)
Connectivity
Wi-Fi 5, Bluetooth 5.4, GPS, USB Type-C, NFC
Wi-Fi 7, Bluetooth 6, NFC, GPS, USB-C, Thread, Ultra Wideband
Security
In-display fingerprint sensor, face unlock
Face ID facial recognition
Dimensions
Approximately 158.2 × 75 × 8.0 mm
163.4 × 78 × 8.75 mm
Weight
185 g
249 grams
Performance Rating
7.2
9.9
Value Rating
8.0
8.5
Specification
OPPO F31 5G
—
—
Apple iPhone 18 Pro Max
—
—
Brand
OPPO
Apple
Release Date
—
—
Operating System
Android 15
iOS 27
Processor
MediaTek Dimensity 6300
Apple A20 Pro
Processor Speed
Up to 2.4 GHz
Not officially disclosed; 6-core CPU (2 performance + 4 efficiency cores)
Screen Size
6.57 inches (approximately 6.5 inches)
6.9 inches
Display
AMOLED, flat display
Super Retina XDR LTPO OLED
Resolution
1080 × 2372 pixels (FHD+)
2868 × 1320 pixels (460 ppi)
Refresh Rate
120Hz
120Hz
Brightness
Up to 1,400 nits (high-brightness mode)
1,000 nits typical; 1,600 nits HDR peak; 3,000 nits outdoor peak
RAM
8GB LPDDR4X
Not officially disclosed
Storage
8GB + 128GB, 8GB + 256GB
12GB + 256GB, 12GB + 512GB, 12GB + 1TB
Battery
7,000 mAh, non-removable
Up to 43 hours video playback; up to 38 hours streamed video playback
Fast Charging
Yes
Yes
Wireless Charging
No
Yes
Colour
Cloud Green, Midnight Blue, Bloom Red
Black, Silver, Glacier, Burgundy
Rear Camera
50MP main (f/1.8) + 2MP secondary (f/2.4)
Triple 48 MP camera system: 48 MP Fusion Main with variable aperture + 48 MP Ultra Wide + 48 MP Telephoto
Front Camera
16MP (f/2.4)
18 MP Center Stage camera with autofocus
Network
5G, 4G LTE, 3G, 2G
5G, 4G LTE, 3G, 2G
SIM
Dual Nano-SIM
Nano-SIM + eSIM; dual eSIM support (market dependent)
Connectivity
Wi-Fi 5, Bluetooth 5.4, GPS, USB Type-C, NFC
Wi-Fi 7, Bluetooth 6, NFC, GPS, USB-C, Thread, Ultra Wideband
Security
In-display fingerprint sensor, face unlock
Face ID facial recognition
Dimensions
Approximately 158.2 × 75 × 8.0 mm
163.4 × 78 × 8.75 mm
Weight
185 g
249 grams
Performance Rating
7.2
9.9
Value Rating
8.0
8.5
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