Samsung Galaxy A18 vs Samsung Galaxy A21s

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Galaxy A18 compared with Galaxy A21s

	SamsungGalaxy A18	SamsungGalaxy A21s
Overview
Released
Released	September 2026	May 2020
Display
Screen size
Screen size	6.7″	6.5″
Resolution
Resolution	2340 × 1080 (better)	1600 × 720
Sharpness
Sharpness	385 pixels per inch (better)	270 pixels per inch
Panel
Panel	OLED	LCD
Refresh rate
Refresh rate	90 Hz	–
Display type
Display type	Super AMOLED, FHD+, 16 million colours; 6.7-inch full rectangle, 6.5-inch accounting for rounded corners	HD+ TFT Infinity-O display, 20:9 aspect ratio
Screen protection
Screen protection	Corning Gorilla Glass 3 on the front	–
Performance
Chip
Chip	Exynos 1610	Exynos 850
Memory
Memory	4 GB	3 GB – 6 GB (better)
Storage
Storage	128 GB (better)	32 GB, 64 GB
Storage type
Storage type	–	32 GB in the UK; dedicated microSD slot up to 512 GB
CPU
CPU	Octa-core, 2.4 GHz and 2 GHz	–
Memory
Memory	LPDDR5; RAM Plus uses internal storage as virtual memory, separate from physical RAM	–
Cameras
Main camera
Main camera	50 MP (better)	48 MP
Ultra wide camera
Ultra wide camera	5 MP	8 MP
Telephoto camera
Telephoto camera	None	None
Optical zoom
Optical zoom	None	None
Front camera
Front camera	13 MP	13 MP
Main camera
Main camera	50 MP, F1.8, autofocus; Samsung UK's exact specification lists no OIS, conflicting with GSMArena's stabilisation description	48 MP, F2.0
Ultra wide camera
Ultra wide camera	5 MP, F2.2	8 MP, F2.2, 123-degree field of view
Front camera
Front camera	13 MP, F2.0; no autofocus or OIS	13 MP, F2.2
Zoom
Zoom	Digital zoom up to 10×	–
Video recording
Video recording	FHD (1920 × 1080) at 30 fps; slow motion at 120 fps in HD	–
Camera features
Camera features	2 MP F2.4 macro camera; rear flash	2 MP F2.4 macro and 2 MP F2.4 depth cameras; 1080p video at 30 fps
Battery and charging
Battery
Battery	5,000 mAh	5,000 mAh
Wired charging
Wired charging	Up to 25 W (better)	Up to 15 W
Wireless charging
Wireless charging	None	None
Battery life detail
Battery life detail	Typical 5,000 mAh, non-removable; EU energy class A, minimum battery endurance 1,200 cycles	–
Wired charging
Wired charging	Up to 25 W; Samsung France claims 50% charge in 30 minutes; charger sold separately	–
Design
Type
Type	Standard	Standard
Weight
Weight	196 g	192 g (better)
Thickness
Thickness	7.7 mm (better)	8.9 mm
Height × width
Height × width	164.4 × 77.9 mm	163.6 × 75.3 mm
Materials
Materials	–	Glossy plastic body
Water and dust resistance
Water and dust resistance	IP64	–
Colours
Colours	Black, Silver, Light Blue (UK)	Black, white and blue in the UK
Water resistance detail
Water resistance detail	IP64, dust-tight and splash-resistant; maker test sprays 10 litres of fresh water per minute from all angles for five minutes; not recommended for beach or pool use	–
Biometrics
Biometrics	Side-button fingerprint recognition sensor (exact repair guide)	Rear fingerprint reader and face recognition
Sensors
Sensors	Accelerometer, fingerprint sensor, gyro sensor, geomagnetic sensor, light sensor, virtual proximity sensing	–
Speakers
Speakers	No stereo support (Samsung UK)	–
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	Android 17 with One UI 9 (Samsung France)	Android 10 with One UI Core
Software features
Software features	Knox Vault, Quick Share and Smart Switch; no Samsung DeX support	–
Release detail
Release detail	Samsung France confirmed already available on 15 September 2026; first retail day is not established, so month precision is retained. Swedish announcement says availability later in 2026.	–
Software updates
Software updates	Up to six generations of OS upgrades and six years of security updates; UK security support listed until 31 October 2032	–
AI features
AI features	Circle to Search with Google; Gemini (Samsung France)	–
Connectivity
Mobile network
Mobile network	4G LTE FDD/TDD; 3G WCDMA and 2G GSM; no 5G	–
SIM
SIM	Dual nano-SIM; UK technical table specifies SIM 1 plus hybrid second SIM/microSD slot, despite its generic FAQ calling the microSD slot dedicated	Dual nano-SIM plus dedicated microSD slot on SM-A217F
Wi-Fi
Wi-Fi	Wi-Fi 5 (802.11a/b/g/n/ac), 2.4 and 5 GHz, VHT80; Wi-Fi Direct	Wi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz
Bluetooth
Bluetooth	Bluetooth 5.3	Bluetooth 5.0
NFC
NFC	Yes (UK model)	–
USB
USB	USB Type-C, USB 2.0; audio via USB-C	USB Type-C 2.0; 3.5 mm headphone socket
Positioning
Positioning	GPS, Glonass, Beidou, Galileo, QZSS	GPS, GLONASS, BeiDou and Galileo