Full specifications, features and battery life for the Suunto Core 2, the brand’s ABC tool watch with no GPS or wrist heart rate.
| Manufacturer | Suunto |
| Type | ABC tool watch (altimeter, barometer, compass). No GPS, no wrist heart rate, no maps. |
| Series | Core |
| Released | July 2026 |
| Price at launch | £155 / $199 / €199 |
| Predecessor | Suunto Core (original) |
| Successor | — |
| Dimensions | 49 x 49 x 14.84mm |
| Weight | 74g |
Specifications and features as at launch.
Suunto Core 2
Classic ABC outdoor watch with 15-month replaceable battery, 10 ATM water resistance and Bluetooth firmware sync
+other retailersExpert opinion | What’s new | Specifications | Battery life | Features | Further reading
Expert opinion
The Core 2’s 49mm case feels smaller than its dimensions suggest, and the rotating bezel turns in both directions rather than ratcheting one way, a design choice that sits awkwardly next to the freedive depth meter. The display is hard to read in bright daylight despite Suunto’s claimed 40% brightness increase over the original Core, though it holds up fine indoors and the red backlight suits night use. The compass matched a smartphone compass to within a couple of degrees after calibration and held that calibration through several days of wear. The altimeter drifted around 10 metres in 24 hours at a fixed location under stable weather, typical for a barometric-only altimeter with no GPS to recalibrate it. No method of logging an altitude or pressure profile over time could be found on the watch or in the companion app, despite the original Core offering exactly that.
What’s new versus the original Core
Hardware improvements
- Water resistance rises from 3 ATM to 10 ATM
- Battery life claim rises from 12 months to 15 months, on a larger CR3032 cell in place of the CR2032
- Display glass upgraded to Corning Gorilla Glass, from mineral crystal
- Backlight adds a red option alongside green; red preserves night vision and suits night-vision-goggle use
- Larger buttons with more tactile feedback
- Strap changes from elastomer to 22mm silicone, a standard size with wide aftermarket availability
- Moon phase and step counter added
- Bluetooth added, for time sync and firmware updates
Removed or reduced
- Freedive depth meter range falls from 10m at 0.1m resolution to 2m
- Altimeter floor rises from -500m to -100m, placing locations such as the Dead Sea out of range
- The View button, which cycled supplementary displays across all modes on the original Core, has been removed
- The manual logbook, which stored up to 10 logs with a selectable recording interval on the original Core, could not be found on the Core 2
- Cold-end storage temperature narrows from -30°C to -20°C
Specifications
| Display | |
|---|---|
| Type | 1.3in monochrome dot-matrix LCD, LED backlight (red and green, switchable) |
| Glass | Corning Gorilla Glass |
| Physical | |
| Dimensions | 49 x 49 x 14.84mm |
| Weight | 74g |
| Case material | Composite, stainless steel bezel |
| Strap | 22mm silicone, standard size |
| Water resistance | 10 ATM / 100m |
| Buttons | 5, physical |
| Operating temperature | 0°C to +40°C |
| Storage temperature | -20°C to +60°C |
| Environmental testing | MIL-STD-810: heat, humidity, salt fog, solar radiation, low pressure, icing/freezing rain, dust. Shock and vibration not confirmed. |
| Sensors | |
| Altimeter | Barometric, manual reference point. Floor -100m. |
| Barometer | 1 hPa resolution, pressure trend display, storm alarm |
| Compass | Magnetic, ±5° stated accuracy, bearing lock |
| Freedive depth meter | 2m range |
| GPS | None |
| Heart rate | None |
| Connectivity and battery | |
| Wireless | Bluetooth, limited to time sync, firmware updates and step sync. No phone notifications. |
| Battery | CR3032 coin cell, user-replaceable, up to 15 months claimed |
Battery life
Suunto claims up to 15 months on the CR3032 coin cell. The CR3032 holds roughly 500mAh, against about 220mAh for the CR2032 used in the original Core, and CR3032 cells are less commonly stocked in supermarkets than the CR2032, so a spare is worth sourcing from an electronics or watch parts retailer in advance.
Features
Full feature detail is covered on the Suunto specifications index.
Storm alarm
Triggers on a rapid barometric pressure drop when the watch is in barometer profile. On automatic profile the watch switches to altimeter mode when moving, and the storm alarm drops out with it.
What the Suunto app does
The app handles firmware updates, time sync, and appears to sync step data. It does not show altitude history, pressure history or activity logs.
What it does not do
- No GPS or GNSS
- No wrist heart rate
- No maps or navigation beyond bearing lock
- No phone notifications
- No workout tracking or training metrics
