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.

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2 of 3 devices The best value in a row is marked Best
Brand Samsung Google Empty slot
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) Empty slot
Announced 2020, August 05 2025, March 19 Empty slot
Released 2020, August 06 2025, April 10 Empty slot
Availability Available — Empty slot
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G Empty slot
2G Bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 Empty slot
3G Bands HSDPA 850 / 900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 Empty slot
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 Empty slot
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 Empty slot
Speed HSPA, LTE HSPA, LTE, 5G Empty slot
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) Empty slot
Weight 53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best 186 g (6.56 oz) Empty slot
Build Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel Glass front (Gorilla Glass 3), aluminum frame, plastic back Empty slot
SIM eSIM (LTE models) Nano-SIM +eSIM Empty slot
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) Empty slot
Display Type Super AMOLED P-OLED Empty slot
Display Size 1.4 inches 6.3 inches, 94.7 cm2(~83.5% screen-to-body ratio) Best Empty slot
Resolution 360 x 360 pixels 1080 x 2424 pixels, 20:9 ratio Empty slot
Pixel Density ~364 ppi ~422 ppi Best Empty slot
Refresh Rate 60Hz 120Hz Best Empty slot
Peak Brightness — 1800 nits (HBM), 2700 nits (peak) Empty slot
Protection Corning Gorilla Glass DX Corning Gorilla Glass 3 Empty slot
Display Features Always-On-Display HDR Empty slot
Operating System Tizen Android Empty slot
OS Version 5.5 15 Empty slot
Update Support — Upgradable to Android 16Up to 7 major Android upgrades Empty slot
User Interface — Pixel UI Empty slot
Chipset Exynos 9110 (10 nm) Google Tensor G4 (4 nm) Empty slot
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) Empty slot
GPU Mali-T720 Mali-G715 MP7 Empty slot
RAM Options 1GB 8GB Empty slot
Storage Options 4GB / 1GB RAM8GB / 1GB RAM 128GB / 8GB RAM256GB / 8GB RAM Empty slot
Storage Type eMMC UFS 3.1 Empty slot
Card Slot No No Empty slot
Cameras — Dual camera Empty slot
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 Empty slot
Features — Dual-LED flash, Pixel Shift, Ultra HDR, panorama, Best Take Empty slot
Video — 4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, OIS Empty slot
Cameras — Single camera Empty slot
Modules No Camera 13 MP, f/2.2, 20mm (ultrawide), 1/3.1", 1.12µm Empty slot
Features — HDR, panorama Empty slot
Video — 4K@30fps, 1080p@30fps Empty slot
Loudspeaker Yes Yes, with stereo speakers Empty slot
Audio Jack No No Empty slot
Audio Codec Not Available AAC, aptX, aptX HD, LDAC Empty slot
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac/6e, dual/tri-band (market/region dependent) Empty slot
Bluetooth 5.0, A2DP, LE 5.3, A2DP, LE Empty slot
GPS / Positioning GPS, GLONASS, GALILEO, BDS GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC Empty slot
NFC Yes Yes Empty slot
Radio No No Empty slot
USB No USB Type-C 3.2 Empty slot
Fingerprint No Yes (Under Display) Empty slot
Face Unlock No Yes, Class 3 (Biometric Secure / Payment-grade) Empty slot
Sensors Accelerometer, gyro, barometer, light, optical heart rate, electrical heart (ECG) Accelerometer, Gyro, Proximity, Compass, Barometer Empty slot
Other Features ECG certifiedBlood pressure monitorCompatible with standard 22mm (45mm) / 20mm (41mm) strapsSizes: 41mm, 45mm; Bluetooth and LTE versions Circle to Search Empty slot
Battery Type Li-Ion Li-Po Empty slot
Battery Capacity 340 mAh (45mm)247 mAh (41mm) 5100 mAh Best Empty slot
Wired Charging N/A 23W wired, PD3.0 Empty slot
Wireless Charging Wireless (WPC-based) 7.5W wirelessBypass charging Empty slot
Reverse Wireless Charging N/A No Empty slot
Colours Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium Obsidian, Porcelain, Iris, Peony Empty slot
Models SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U GXQ96, GTF7P, G3Y12 Empty slot
SAR EU — 0.99 W/kg (head) 1.39 W/kg (body) Empty slot