Samsung Galaxy A51 5G vs Samsung Galaxy Watch3

Specs comparison

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2 of 2 devices The best value in a row is marked Best	Change Samsung Galaxy A51 5G to… Cancel	Samsung Samsung Galaxy Watch3 View Specs Change
Brand	Samsung	Samsung
Versions	SM-A516B/DS (International), SM-A516U (USA), SM-A516F/DSN, SM-A516N (South Korea)	SM-R855F, SM-R845F (Global, LTE model); SM-R855U, SM-R845U (USA, LTE model); SM-R850, SM-R840 (Wi-Fi only)
Announced	2020, April 08	2020, August 05
Released	2020, April 29	2020, August 06
Availability	Available	Available

Technology	GSM / HSPA / LTE / 5G	GSM / HSPA / LTE
2G Bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Bands	HSDPA 850 / 900 / 1900 / 2100 - SM-A516B/DSHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 2100
4G Bands	1, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41 - SM-A516B/DS2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A516U	1, 3, 5, 7, 8, 20
5G Bands	41, 78 SA/NSA/Sub6 - SM-A516B/DS	—
Speed	HSPA, LTE, 5G	HSPA, LTE

Dimensions	158.9 x 73.6 x 8.7 mm(6.26 x 2.90 x 0.34 in)	45mm: 45 x 46.2 x 11.1 mm41mm: 41 x 42.5 x 11.3 mm
Weight	187 g (6.60 oz)	53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best
Build	Glass front (Gorilla Glass 3), plastic back, aluminum frame	Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel
SIM	· Nano-SIM· Nano-SIM + Nano-SIM	eSIM (LTE models)
Protection / IP Rating	—	IP68 dust/water resistant, 5ATMMIL-STD-810G compliant

Display Type	Super AMOLED	Super AMOLED
Display Size	6.5 inches, 102.0 cm2 (~87.2% screen-to-body ratio) Best	1.4 inches
Resolution	1080 x 2400 pixels, 20:9 ratio	360 x 360 pixels
Pixel Density	~405 ppi Best	~364 ppi
Refresh Rate	60Hz	60Hz
Peak Brightness	400 to 420 nits	—
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass DX
Display Features	Infinity-O	Always-On-Display

Operating System	Android	Tizen
OS Version	10	5.5
Update Support	Upgradable to Android 13	—
User Interface	One UI 2.1, Upgradable to One UI 5	—
Chipset	Exynos 980 (8 nm)	Exynos 9110 (10 nm)
CPU	Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55)	Dual-core 1.15 GHz Cortex-A53
GPU	Mali-G76 MP5	Mali-T720

RAM Options	4GB, 6GB, 8GB	1GB
Storage Options	128GB / 4GB RAM128GB / 6GB RAM128GB / 8GB RAM	4GB / 1GB RAM8GB / 1GB RAM
Storage Type	UFS 2.1	eMMC
Card Slot	microSDXC (uses shared SIM slot)	No

Cameras	Triple camera	—
Modules	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF12 MP, f/2.2, 123˚ (ultrawide)5 MP (macro)Auxiliary lens	No Camera
Features	LED flash, panorama, HDR	—
Video	4K@30fps, 1080p@30/120fps, gyro-EIS	—

Cameras	Single camera	—
Modules	32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm	No Camera
Features	HDR	—
Video	4K@30fps, 1080p@30fps	—

Loudspeaker	Yes	Yes
Audio Jack	Yes	No
Audio Codec	—	Not Available

WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 b/g/n
Bluetooth	5.0, A2DP, LE	5.0, A2DP, LE
GPS / Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, GALILEO, BDS
NFC	Yes	Yes
Radio	FM radio, RDS, recording	No
USB	USB Type-C 2.0, OTG	No

Fingerprint	Yes, (under display, optical)	No
Face Unlock	Yes	No
Sensors	Accelerometer, gyro, proximity, compass	Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG)
Other Features	ANT+	ECG certifiedBlood pressure monitorCompatible with standard 22mm (45mm) / 20mm (41mm) strapsSizes: 41mm, 45mm; Bluetooth and LTE versions

Battery Type	Li-Po	Li-Ion
Battery Capacity	4500 mAh Best	340 mAh (45mm)247 mAh (41mm)
Wired Charging	15W wired	N/A
Wireless Charging	No	Wireless (WPC-based)
Reverse Wireless Charging	—	N/A

Colours	Prism Cube Black, Prism Cube White, Prism Cube Pink	Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium
Models	SM-A516F, SM-A516F/DSN, SM-A516N, SM-A516B/DS, SM-A516B, SM-A516U, SC-54A, SM-A516U1, SCG07, SM-A5160	SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U
SAR EU	0.50 W/kg (head) 1.55 W/kg (body)	—