Apple Watch Ultra 4 alternatives Longest battery

Apple Watch Ultra 4 alternatives ranked: longest battery

The COROS VERTIX 2S GPS Adventure Watch leads with 864 hr, against 50 hr on the Apple Watch Ultra 4. Only models whose makers list battery, smartwatch use (rated) are ranked here.

Best overall match Cheapest Longest battery Longest GPS battery Lightest

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COROS VERTIX 2S GPS Adventure Watch

Rated for 36 days of daily use and 43 hours of dual-frequency GPS against 18, with a sapphire screen, offline maps and 10 ATM, for $100 less. No cellular version, and COROS lists neither a flashlight nor an ECG feature, or a case-only weight.

864 hr Battery, smartwatch use (rated)

82% $100 less (13%)

See it on Amazon vs Apple Watch Ultra 4

Amazfit T-Rex Ultra 2

Up to 30 days and 50 hours in its most accurate GPS mode, with preloaded maps, a flashlight, sapphire glass and 10 ATM, for $249 less. No ECG, no cellular version, and Amazfit gives only a with-strap weight of 89.2 g.

720 hr Battery, smartwatch use (rated)

82% $249 less (31%)

See it on Amazon vs Apple Watch Ultra 4

Amazfit T-Rex 3 Pro 48mm

Rated for 25 days against 50 hours and 38 hours in its most accurate GPS mode against 18, with a lighter 52 g case, dual-band GPS, offline maps, an LED flashlight, sapphire glass and 10 ATM. There is no ECG and no cellular version. $399 less.

600 hr Battery, smartwatch use (rated)

88% $399 less (50%)

See it on Amazon vs Apple Watch Ultra 4

Garmin Instinct 3 50mm AMOLED

Rated for 24 days and 30 hours of multi-band GPS, with an LED flashlight and 10 ATM, for $399 less. Garmin's feature list gives it point-to-point navigation but no maps, chemically strengthened glass instead of sapphire, no ECG app and no cellular version.

576 hr Battery, smartwatch use (rated)

65% $399 less (50%)

View on Amazon vs Apple Watch Ultra 4

Suunto Vertical 2 All Black

Up to 20 days as a smartwatch and 65 hours of multi-band GPS against 18, with offline maps, an LED flashlight, a sapphire lens and the same 100 m rating, for $200 less. No ECG, no cellular version, and Suunto does not give a case-only weight.

480 hr Battery, smartwatch use (rated)

82% $200 less (25%)

View on Amazon vs Apple Watch Ultra 4

Garmin Forerunner 970

Keeps the ECG app, sapphire lens, offline maps, flashlight and multi-band GPS, and is rated for 15 days against 50 hours, for $49 less. It is rated 5 ATM against 100 m, has no cellular version, and its 21 hours of multi-band GPS is only 3 more than Apple's 18.

360 hr Battery, smartwatch use (rated)

85% $49 less (6%)

View on Amazon vs Apple Watch Ultra 4

Samsung Galaxy Watch Ultra2 47mm LTE

The closest match on connectivity: dual-frequency GPS, an ECG feature, LTE and 10 ATM, with 80 hours with the always-on display off against 50, and a 61.5 g case against 63.0, for $99 less. Samsung does not publish a GPS battery figure in standard mode, a flashlight, offline maps or the lens material.

80 hr Battery, smartwatch use (rated)

79% $99 less (12%)

View on Amazon vs Apple Watch Ultra 4

Why rank by longest battery?

Every watch here has built-in GPS and a case made for the outdoors; the gaps that matter on a trail are narrower. How long it runs as a smartwatch and how many hours it records in its most accurate GPS mode, whether it uses dual-frequency GPS, whether it carries maps you can follow offline, whether it has a flashlight and a sapphire lens, how deep it is rated, and whether there is an ECG or a cellular version.

The overall ranking on the Apple Watch Ultra 4 alternatives page weighs every published spec. This page answers one question only, so a model can rank first here and lower overall. The DupeScore beside each model is the overall figure.