Form Factor
Body
Clamshell, Touchscreen	Clamshell, Touchscreen
Dimensions
114 x 57 x 26 mm (4.49 x 2.24 x 1.02 in)	Unfolded: 165.1 x 71.9 x 6.9 mm Folded: 85.1 x 71.9 x 15.1 mm
Weight
150 g (5.29 oz)	187 g (6.60 oz)
Build
	Plastic front (unfolded), glass back (Gorilla Glass Victus 2), aluminum frame IPX8 water resistant (up to 1.5m for 30 min) Armor aluminum frame with tougher drop and scratch resistance (advertised)
Colors
Premium Silver	Mint, Graphite, Cream, Lavender, Gray, Blue, Green, Yellow
Models
	SM-F731B, SM-F731B/DS, SM-F731U, SM-F731U1, SM-F731W, SM-F731N

Type
Display
TFT resistive touchscreen, 256K colors	Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1750 nits (peak)
Size
2.7 inches, 41 x 56 mm, 22.6 cm² (~34.7% screen-to-body ratio)	6.7 inches, 102.0 cm² (~85.9% screen-to-body ratio)
Resolution
240 x 320 pixels, 4:3 ratio (~148 ppi density)	1080 x 2640 pixels (~425 ppi density)
Secondary
	Cover display: Super AMOLED, 3.4 inches, 720 x 748 pixels (Gorilla Glass Victus 2), 306 ppi

Alert Types
Notifications
Vibration, Downloadable polyphonic, MP3, AAC ringtones, composer

Internal Memory
Memory
64MB RAM	256GB ROM, 8GB RAM 512GB ROM, 8GB RAM
Storage Type
128 MB Flash 60 MB user memory	UFS 4.0
Card Slot
Memory Stick Duo Pro, 64 MB included	No

GPRS
Connectivity
Class 10
Speed
Yes, 384 kbps	HSPA, LTE (CA), 5G
WLAN
Wi-Fi 802.11b	Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct
Bluetooth
2.0, A2DP	5.3, A2DP, LE
USB
2.0	USB Type-C 3.2, OTG
Infrared Port
Yes
NFC
	Yes

Main Camera
Camera
2 MP, AF	Primary: 12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS Secondary: 12 MP, f/2.2, 123" (ultrawide), 1.12µm
Camera Features
LED flash	LED flash, HDR, panorama
Video
Yes	4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+
Selfie Camera
VGA videocall camera	10 MP, f/2.2, 23mm (wide), 1.22µm Features: HDR Video: 4K@30fps

Operating System (OS)
Software
Symbian OS v9.1, UIQ 3.0	Android OS, v13
UI
	One UI 5.1.1
Java
Yes, MIDP 2.0
Browser
WAP 2.0/xHTML, HTML (Opera 8.0), RSS reader
Messaging
SMS, EMS, MMS, EMail

Chipset
Hardware
	Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
CPU
32-bit Philips Nexperia PNX4008 208 MHz	Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU
	Adreno 740
Sensors
	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Keyboard
QWERTY
Soft Keys
2
SIM
Mini-SIM	Nano-SIM and eSIM
Speakers
Yes	Yes, with stereo speakers 32-bit/384kHz audio
Navigation / Controls Keys
D-Pad
Audio Jack
	No

Performance
Benchmarks
	AnTuTu: 1200783 (v9), 1507319 (v10) GeekBench: 5478 (v5.5), 4984 (v6.0) GFXBench: 91fps (ES 3.1 onscreen)

Battery Type
Battery
Removable Li-Ion battery	Li-Po 3700 mAh, non-removable
Standby
Up to 400 h
Charging
	25W wired, 50% in 30 min (advertised) 15W wireless 4.5W reverse wireless
Talk Time
Up to 9 h

Main Features
Additional Features
Handwriting recognition
Features
Predictive text input SyncML Voice command Voice memo

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