Samsung Galaxy Watch3 vs Samsung Galaxy A51 5G

Specs comparison

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

Technology	GSM / HSPA / LTE	GSM / HSPA / LTE / 5G
2G Bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1900 / 2100 - SM-A516B/DSHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Bands	1, 3, 5, 7, 8, 20	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
5G Bands	—	41, 78 SA/NSA/Sub6 - SM-A516B/DS
Speed	HSPA, LTE	HSPA, LTE, 5G

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

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

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

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

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

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

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

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

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

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

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