Garmin Descent Mk3i vs Garmin tactix 8
5 recorded spec differences. Garmin tactix 8 is currently the cheaper of the two on Amazon.sa (SAR 8,499 vs SAR 7,349, checked 1 Nov 2026).
Specifications side by side
| Spec | Garmin Descent Mk3i | Garmin tactix 8 |
|---|---|---|
| Phone, battery and calls | ||
| Battery life | 25 days | 29 days |
| Built-in GPS | Yes | Yes |
| Size, screen and durability | ||
| Water resistance | 20 ATM | 10 ATM |
| Weight | 166 g | 122 g |
| Case size | 51 mm | 51 mm |
| Display type | AMOLED | AMOLED |
| Display size | 1.4 in | 1.4 in |
| Case material | Titanium | Titanium |
| Health and payments | ||
| ECG | No | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Heart-rate tracking | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Other specs | ||
| Release year | 2023 | — |
| Dimensions | 5.1 × 5.1 × 1.64 cm | 5.1 x 5.1 x 1.5 cm |
| App control (Wi-Fi) | Yes | — |
Highlighted rows differ. Facts come from each Amazon.sa listing. As an Amazon Associate we earn from qualifying purchases. Buying through our links costs you nothing extra.