Garmin tactix 8 Solar: specs, who it fits and compatible phones

Garmin tactix 8 Solar is a sport watch released in 2025 that works with iPhone and Android. It lists Dual-band GNSS + maps, 10ATM and Garmin Pay.

Specifications

Release year	2025
Case size	51 mm
Display	MIP
Battery as listed	Up to 48 days with solar charging
Water rating	10ATM
Glass	Power Sapphire
Case material	Titanium
GPS type	Dual-band GNSS + maps
Offline maps	Yes
Operating system	Garmin OS
Works with	iPhone and Android
Connection	None
Contactless wallet	Garmin Pay
Plan needed	None
Health sensors	SpO2, HRV, Skin temperature, ECG, Readiness score
Safety features	SOS

Who it fits

Works with iPhone and Android.
Lists dual-band GPS and offline maps, which suits running and hiking.
Lists a battery above the median of 43 listed sport watch models.

How it compares

Closest models from Garmin

Model	Release year	Case size	Battery as listed	Water rating	GPS type	Works with
Garmin Forerunner 970	2025	47 mm	Up to 15 days	5ATM	Dual-band GNSS + maps	iOS and Android
Garmin tactix 8 AMOLED	2025	47 / 51 mm	Up to 16 days (47 mm) · 29 days (51 mm)	10ATM	Dual-band GNSS + maps	iOS and Android
Garmin tactix 8 Cerakote Edition	2026	51 mm	Up to 29 days	10ATM	Dual-band GNSS + maps	iOS and Android

Closest models from other brands

Model	Release year	Case size	Battery as listed	Water rating	GPS type	Works with
Suunto Vertical 2	2025	49 mm	Up to 20 days · 65 GPS hours dual-band	10ATM	Dual-band GNSS + maps	iOS and Android
Amazfit T-Rex 3 Pro	2025	48 mm	25 days (approx.)	10ATM	Dual-band GNSS + maps	iOS and Android
COROS NOMAD	2025	46 mm	Up to 22 days; 50 hours All-Systems GPS	5ATM	Dual-band GNSS + maps	iOS and Android

Compared with Garmin Forerunner 970, Garmin tactix 8 Solar lists a higher ATM rating (10 against 5), a larger case (51 mm against 47 mm) and Titanium case material, where Garmin Forerunner 970 lists Titanium bezel.

Compared with Garmin tactix 8 AMOLED, Garmin tactix 8 Solar lists Power Sapphire glass, where Garmin tactix 8 AMOLED lists Sapphire.

Compared with Garmin tactix 8 Cerakote Edition, Garmin tactix 8 Solar lists a longer listed battery (48 days against 29), an older release year (2025 against 2026) and Titanium case material, where Garmin tactix 8 Cerakote Edition lists Cerakote-coated titanium.

Compared with Suunto Vertical 2, Garmin tactix 8 Solar lists Titanium case material, where Suunto Vertical 2 lists Stainless steel / grade-5 titanium, Power Sapphire glass, where Suunto Vertical 2 lists Sapphire and a contactless wallet (Garmin Pay), which Suunto Vertical 2 does not list.

Compared with Amazfit T-Rex 3 Pro, Garmin tactix 8 Solar lists a larger case (51 mm against 48 mm), Power Sapphire glass, where Amazfit T-Rex 3 Pro lists Sapphire and a contactless wallet (Garmin Pay), which Amazfit T-Rex 3 Pro does not list.

Compared with COROS NOMAD, Garmin tactix 8 Solar lists a longer listed battery (48 days against 22), a higher ATM rating (10 against 5) and a larger case (51 mm against 46 mm).

Only values listed exactly are compared.

Position in the catalog

Its listed battery of 48 days is above 92% of 13 sport watches with a single plain days value. Its case size of 51 mm is larger than 80% of 30 sport watches with a single exact size. Its exact water rating of 10ATM is above 43% of 47 sport watches with a single exact ATM rating. It was released in 2025. Among 52 sport watches with an exact release year, 69% were released in 2025 or earlier and 69% were released in 2025 or later.

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.

Related guides and lists

Last verified September 26, 2026

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