Garmin Forerunner 70: specs, who it fits and compatible phones
Garmin Forerunner 70 is a sport watch released in 2026 that works with iPhone and Android. It lists Dual-band GNSS, 5ATM and SpO2, HRV.
Specifications
| Release year | 2026 |
|---|---|
| Case size | 42 mm (approx.) |
| Display | AMOLED |
| Battery as listed | Up to 13 days |
| Water rating | 5ATM |
| Case material | Polymer |
| GPS type | Dual-band GNSS |
| Operating system | Garmin OS |
| Works with | iPhone and Android |
| Connection | No cellular connection |
| Plan needed | None |
| Health sensors | SpO2, HRV, Readiness score |
| Safety features | SOS |
Who it fits
- Works with iPhone and 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 Garmin
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Garmin Forerunner 170 | 2026 | 42 mm | Up to 10 days | 5ATM | Dual-band GNSS | iOS and Android |
| Garmin tactix 8 Cerakote Edition | 2026 | 51 mm | Up to 29 days | 10ATM | Dual-band GNSS + maps | iOS and Android |
| Garmin tactix 8 Solar | 2025 | 51 mm | Up to 48 days with solar charging | 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 Run 2 | 2026 | 46 mm | Up to 10 days | 5ATM | Dual-band GNSS + maps | iOS and Android |
| Amazfit Cheetah 2 Ultra | 2026 | 47 mm (approx.) | Up to 30 days · 60 GPS hours continuous | 5ATM (approx.) | Dual-band GNSS + maps | iOS and Android |
| Amazfit T-Rex Dual Solar | 2026 | 51.4 mm | Up to 25 days · 34 with sun | 10ATM | Dual-band GNSS + maps | iOS and Android |
Compared with Garmin Forerunner 170, Garmin Forerunner 70 lists a longer listed battery (13 days against 10).
Compared with Garmin tactix 8 Cerakote Edition, Garmin Forerunner 70 lists a shorter listed battery (13 days against 29), a lower ATM rating (5 against 10) and Polymer case material, where Garmin tactix 8 Cerakote Edition lists Cerakote-coated titanium.
Compared with Garmin tactix 8 Solar, Garmin Forerunner 70 lists a shorter listed battery (13 days against 48), a lower ATM rating (5 against 10) and a newer release year (2026 against 2025).
Compared with Suunto Run 2, Garmin Forerunner 70 lists a longer listed battery (13 days against 10) and Polymer case material, where Suunto Run 2 lists Stainless steel bezel.
Compared with Amazfit T-Rex Dual Solar, Garmin Forerunner 70 lists a lower ATM rating (5 against 10) and Polymer case material, where Amazfit T-Rex Dual Solar lists Grade 5 titanium.
Only values listed exactly are compared.
Position in the catalog
Its listed battery of 13 days is above 36% of 14 sport watches with a single plain days value. Its exact water rating of 5ATM is above 0% of 55 sport watches with a single exact ATM rating. It was released in 2026. Among 60 sport watches with an exact release year, 100% were released in 2026 or earlier and 40% were released in 2026 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
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Garmin smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology