OnePlus Watch 3: specs, who it fits and compatible phones

OnePlus Watch 3 is a smartwatch released in 2025 that works with Android. It lists Dual-band GNSS, 5ATM · IP68 and Google Wallet.

Specifications

Release year	2025
Case size	47 mm
Display	AMOLED
Brightness	2200 nits
Battery as listed	Up to 5 days · up to 16 days in power saver mode
Water rating	5ATM · IP68
Glass	Sapphire
Case material	Stainless steel + titanium bezel
GPS type	Dual-band GNSS
Operating system	Wear OS 5 (upgradeable to 6)
Works with	Android
Connection	None
Contactless wallet	Google Wallet
Plan needed	None
Health sensors	SpO2, HRV, Skin temperature, ECG
Safety features	SOS, Fall detection

Who it fits

Works with Android.
Lists SOS or fall detection, see our guide for older adults.
Lists an exact water rating of 5ATM or higher.

How it compares

Closest models from OnePlus

Model	Release year	Case size	Battery as listed	Water rating	GPS type	Works with
OnePlus Watch 2	2024	46 mm	100 hours smart · 12 days saver (500mAh) (approx.)	5ATM · IP68	Dual-band GNSS + maps	Android only
OnePlus Watch 2R	2024	46 mm	100 hours smart · 12 days saver (500mAh) (approx.)	5ATM · IP68	Dual-band GNSS + maps	Android only
OnePlus Watch 4	2026	46 mm	Up to 5 days · up to 16 days in power saver mode	5ATM · IP68	Dual-band GNSS	Android only

Closest models from other brands

Model	Release year	Case size	Battery as listed	Water rating	GPS type	Works with
OPPO Watch X3	2026	47.4 mm	Up to 5 days · up to 16 days in power saver mode	5ATM · IP68 · IP69	Dual-band GNSS + maps	Android only
TicWatch Atlas	2024	52.8 mm	Up to 90 hours (saver display)	5ATM	Dual-band GNSS	Android only
Galaxy Watch 8 Classic	2025	46 mm	Up to 34 hours (AOD) (approx.)	5ATM · IP68	Dual-band GNSS	Android only

Compared with OnePlus Watch 2, OnePlus Watch 3 lists a newer release year (2025 against 2024), a brighter listed display (2200 nits against 1000) and Stainless steel + titanium bezel case material, where OnePlus Watch 2 lists Stainless steel.

Compared with OnePlus Watch 2R, OnePlus Watch 3 lists a newer release year (2025 against 2024), a brighter listed display (2200 nits against 1000) and Stainless steel + titanium bezel case material, where OnePlus Watch 2R lists Aluminum.

Compared with OnePlus Watch 4, OnePlus Watch 3 lists an older release year (2025 against 2026), a dimmer listed display (2200 nits against 3000) and Stainless steel + titanium bezel case material, where OnePlus Watch 4 lists Full titanium.

Compared with OPPO Watch X3, OnePlus Watch 3 lists an older release year (2025 against 2026), a dimmer listed display (2200 nits against 3000) and Stainless steel + titanium bezel case material, where OPPO Watch X3 lists Titanium.

Compared with TicWatch Atlas, OnePlus Watch 3 lists a smaller case (47 mm against 52.8 mm), a newer release year (2025 against 2024) and Stainless steel + titanium bezel case material, where TicWatch Atlas lists Stainless steel.

Compared with Galaxy Watch 8 Classic, OnePlus Watch 3 lists Bluetooth only, while Galaxy Watch 8 Classic lists eSIM or LTE, a dimmer listed display (2200 nits against 3000) and Stainless steel + titanium bezel case material, where Galaxy Watch 8 Classic lists Stainless steel.

Only values listed exactly are compared.

Phone compatibility and plan

No plan is listed as needed.

Sensors and features are listed as the maker names them and are not medical measurements.

Also available: OnePlus Watch 4, which differs in a newer release year (2026 against 2025), a brighter listed display (3000 nits against 2200) and Full titanium case material, where OnePlus Watch 3 lists Stainless steel + titanium bezel.

Related guides and lists

Last verified September 26, 2026

Features change with updates. Check the maker's current details. See our methodology