Samsung Galaxy Watch3 vs Apple iPhone Air

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	Change Samsung Galaxy Watch3 to… Cancel	Apple Apple iPhone Air View Specs Change
Brand	Samsung	Apple
Versions	SM-R855F, SM-R845F (Global, LTE model); SM-R855U, SM-R845U (USA, LTE model); SM-R850, SM-R840 (Wi-Fi only)	A3517 (International); A3260 (USA, Middle East, Canada, Mexico); A3518 (China)
Announced	2020, August 05	2025, September 09
Released	2020, August 06	2025, September 19
Availability	Available	Available

Technology	GSM / HSPA / LTE	GSM / CDMA / HSPA / EVDO / LTE / 5G
2G Bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900CDMA 800 / 1900
3G Bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100CDMA2000 1xEV-DO
4G Bands	1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66 - A35171, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71 - A32601, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66 - A3518
5G Bands	—	1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A35171, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79 SA/NSA/Sub6 - A32601, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3518
Speed	HSPA, LTE	HSPA, LTE, 5G, EV-DO Rev.A 3.1 Mbps

Dimensions	45mm: 45 x 46.2 x 11.1 mm41mm: 41 x 42.5 x 11.3 mm	156.2 x 74.7 x 5.6 mm(6.15 x 2.94 x 0.22 in)
Weight	53.8 g (45mm stainless steel), 48.2 g (41mm stainless steel), 43 g (45mm titanium) Best	165 g (5.82 oz)
Build	Glass front (Gorilla Glass DX), stainless steel 316L or titanium frame, rotating bezel	Glass front (Ceramic Shield 2), titanium frame (grade 5), glass back (Ceramic Shield)
SIM	eSIM (LTE models)	eSIM + eSIM (8 or more, max 2 at a time)
Protection / IP Rating	IP68 dust/water resistant, 5ATMMIL-STD-810G compliant	IP68 dust tight and water resistant (immersible up to 6m for 30 min)

Display Type	Super AMOLED	LTPO Super Retina XDR OLED
Display Size	1.4 inches	6.5 inches, 104.9 cm2 (~89.9% screen-to-body ratio) Best
Resolution	360 x 360 pixels	1260 x 2736 pixels, 19.5:9 ratio
Pixel Density	~364 ppi	~460 ppi Best
Refresh Rate	60Hz	120Hz Best
Peak Brightness	—	1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)
Protection	Corning Gorilla Glass DX	Ceramic Shield 2Anti-reflective coating
Display Features	Always-On-Display	HDR10, Dolby Vision

Operating System	Tizen	iOS
OS Version	5.5	26
Update Support	—	Upgradable to iOS 27.2
Chipset	Exynos 9110 (10 nm)	Apple A19 Pro (3 nm)
CPU	Dual-core 1.15 GHz Cortex-A53	Hexa-core (2x4.26 GHz + 4x2.60 GHz)
GPU	Mali-T720	Apple GPU (5-core graphics)

RAM Options	1GB	12GB
Storage Options	4GB / 1GB RAM8GB / 1GB RAM	256GB / 12GB RAM512GB / 12GB RAM1TB / 12GB RAM
Storage Type	eMMC	NVMe
Card Slot	No	—

Cameras	—	Single camera
Modules	No Camera	48 MP, f/1.6, 26mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, sensor-shift OIS
Features	—	Dual-LED dual-tone flash, HDR (photo/panorama)
Video	—	4K@24/25/30/60fps, 1080p@25/30/60/120/240fps, HDR, Dolby Vision HDR (up to 60fps), stereo sound rec.

Cameras	—	Single camera
Modules	No Camera	18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAFSL 3D, (depth/biometrics sensor)
Features	—	HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec.
Video	—	4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS

Loudspeaker	Yes	Yes, with stereo speakers
Audio Jack	No	No
Audio Codec	Not Available	—

WLAN	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Bluetooth	5.0, A2DP, LE	6.0, A2DP, LE
GPS / Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GALILEO, GLONASS, QZSS, BDS, NavIC
NFC	Yes	Yes
Radio	No	No
USB	No	USB Type-C 2.0

Fingerprint	No	—
Face Unlock	No	Face ID
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	Ultra Wideband (UWB) support (gen2 chip)

Battery Type	Li-Ion	Li-Ion
Battery Capacity	340 mAh (45mm)247 mAh (41mm)	3149 mAh Best
Wired Charging	N/A	PD2.0, 50% in 30 min
Wireless Charging	Wireless (WPC-based)	20 MagSafe/Qi2, 50% in 30 min (15W - China)
Reverse Wireless Charging	N/A	4.5W

Colours	Mystic Bronze, Mystic Black, Mystic Silver: Stainless Steel; Mystic Black: Titanium	Space Black, Cloud White, Light Gold, Sky Blue
Models	SM-R840, SM-R850, SM-R845F, SM-R855F, SM-R845U, SM-R855U	A3517, A3260, A3518, A3516
SAR	—	1.19 W/kg (head) 1.19 W/kg (body)
SAR EU	—	1.49 W/kg (head) 1.49 W/kg (body)