Samsung Galaxy Watch3 vs Google Pixel 9a

Specs comparison

Add up to three devices side by side to compare their full specifications, features, performance, battery, and key differences in one place. Make informed decisions and find the device that best suits your needs and budget. Search for a device in an empty slot to add it.


2 of 2 devices The best value in a row is marked Best	Samsung Samsung Galaxy Watch3 View Specs Change	Change Google Pixel 9a to… Cancel
Brand	Samsung	Google
Versions	SM-R855F, SM-R845F (Global, LTE model); SM-R855U, SM-R845U (USA, LTE model); SM-R850, SM-R840 (Wi-Fi only)	GXQ96 (USA); GTF7P (International); G3Y12 (Japan)
Announced	2020, August 05	2025, March 19
Released	2020, August 06	2025, April 10
Availability	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 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Bands	1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 14, 17, 18, 19, 20, 21, 26, 28, 32, 38, 39, 40, 41, 42, 66, 75 - International1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 41, 48, 66, 71 - USA
5G Bands	—	1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 66, 75, 77, 78, 79 SA/NSA/Sub6 - International1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 41, 48, 66, 70, 71, 77, 78 SA/NSA/Sub6 - USA
Speed	HSPA, LTE	HSPA, LTE, 5G

Dimensions	45mm: 45 x 46.2 x 11.1 mm41mm: 41 x 42.5 x 11.3 mm	154.7 x 73.3 x 8.9 mm(6.09 x 2.89 x 0.35 in)
Weight	53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best	186 g (6.56 oz)
Build	Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel	Glass front (Gorilla Glass 3), aluminum frame, plastic back
SIM	eSIM (LTE models)	Nano-SIM +eSIM
Protection / IP Rating	IP68 dust/water resistant, 5ATMMIL-STD-810G compliant	IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)

Display Type	Super AMOLED	P-OLED
Display Size	1.4 inches	6.3 inches, 94.7 cm2(~83.5% screen-to-body ratio) Best
Resolution	360 x 360 pixels	1080 x 2424 pixels, 20:9 ratio
Pixel Density	~364 ppi	~422 ppi Best
Refresh Rate	60Hz	120Hz Best
Peak Brightness	—	1800 nits (HBM), 2700 nits (peak)
Protection	Corning Gorilla Glass DX	Corning Gorilla Glass 3
Display Features	Always-On-Display	HDR

Operating System	Tizen	Android
OS Version	5.5	15
Update Support	—	Upgradable to Android 16Up to 7 major Android upgrades
User Interface	—	Pixel UI
Chipset	Exynos 9110 (10 nm)	Google Tensor G4 (4 nm)
CPU	Dual-core 1.15 GHz Cortex-A53	Octa-core (1x3.1 GHz Cortex-X4 & 3x2.6 GHz Cortex-A720 & 4x1.9 GHz Cortex-A520)
GPU	Mali-T720	Mali-G715 MP7

RAM Options	1GB	8GB
Storage Options	4GB / 1GB RAM8GB / 1GB RAM	128GB / 8GB RAM256GB / 8GB RAM
Storage Type	eMMC	UFS 3.1
Card Slot	No	No

Cameras	—	Dual camera
Modules	No Camera	48 MP, f/1.7, 25mm (wide), 1/2.0", 0.8µm, dual pixel PDAF, OIS13 MP, f/2.2, 120˚ (ultrawide), 1/3.1", 1.12µm
Features	—	Dual-LED flash, Pixel Shift, Ultra HDR, panorama, Best Take
Video	—	4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, OIS

Cameras	—	Single camera
Modules	No Camera	13 MP, f/2.2, 20mm (ultrawide), 1/3.1", 1.12µm
Features	—	HDR, panorama
Video	—	4K@30fps, 1080p@30fps

Loudspeaker	Yes	Yes, with stereo speakers
Audio Jack	No	No
Audio Codec	Not Available	AAC, aptX, aptX HD, LDAC

WLAN	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n/ac/6e, dual/tri-band (market/region dependent)
Bluetooth	5.0, A2DP, LE	5.3, A2DP, LE
GPS / Positioning	GPS, GLONASS, GALILEO, BDS	GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
NFC	Yes	Yes
Radio	No	No
USB	No	USB Type-C 3.2

Fingerprint	No	Yes (Under Display)
Face Unlock	No	Yes, Class 3 (Biometric Secure / Payment-grade)
Sensors	Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG)	Accelerometer, Gyro, Proximity, Compass, Barometer
Other Features	ECG certifiedBlood pressure monitorCompatible with standard 22mm (45mm) / 20mm (41mm) strapsSizes: 41mm, 45mm; Bluetooth and LTE versions	Circle to Search

Battery Type	Li-Ion	Li-Po
Battery Capacity	340 mAh (45mm)247 mAh (41mm)	5100 mAh Best
Wired Charging	N/A	23W wired, PD3.0
Wireless Charging	Wireless (WPC-based)	7.5W wirelessBypass charging
Reverse Wireless Charging	N/A	No

Colours	Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium	Obsidian, Porcelain, Iris, Peony
Models	SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U	GXQ96, GTF7P, G3Y12
SAR EU	—	0.99 W/kg (head) 1.39 W/kg (body)