2.7Battery life2.3
Dimensions
Size comparison
Approach S405
| Approach S40 | 5 | Difference | |
|---|---|---|---|
| Height | 43.4 mm | 46 mm | −2.6 mm |
| Width | 43.4 mm | 46 mm | −2.6 mm |
| Thickness | 11.7 mm | 14.6 mm | −2.9 mm |
| Weight | 43 g | 66 g | −23 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Approach S40 better than 5?
- Battery life (smartwatch mode)10 days vs 7 days+43%
- Weight43 g vs 66 g+53%
- Screen size1.2″ vs 1.1″+9%
- Thickness11.7 mm vs 14.6 mm+25%
- Resolution (width)240 px vs 218 px+10%
Why is 5 better than Approach S40?
- GPS battery life15 h vs 20 h+33%
- Sport profiles2 vs 8040×
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 46 mm |
| Weight | 43 g | 66 g |
| Thickness | 11.7 mm | 14.6 mm |
| Height | 43.4 mm | 46 mm |
| Width | 43.4 mm | 46 mm |
| Case material | — | Stainless steel |
| Sapphire crystal | No | — |
| Lens / cover glass | chemically strengthened glass | Mineral glass |
| Strap material | silicone | Silicone |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 50 m |
| Display | ||
| Screen size | 1.2″ | 1.1″ |
| Display technology | — | Memory-in-pixel (transflective) |
| AMOLED / OLED display | — | No |
| Resolution (width) | 240 px | 218 px |
| Resolution (height) | 240 px | 218 px |
| Pixel density | 200 ppi | 198 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 7 days |
| GPS battery life | 15 h | 20 h |
| Battery type | — | rechargeable lithium-ion |
| Wireless charging | No | — |
| Charging | Garmin proprietary plug charger | — |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | GPS, Gyroscope, Accelerometer | Optical HR |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | — | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | 2 | 80 |
| Smart features | ||
| Storage | 0.06 GB | — |
| Platform | ||
| Operating system | Garmin OS | Suunto OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
