Garmin tactix 8 vs Garmin Descent Mk3i
4 recorded spec differences. Garmin Descent Mk3i is currently the cheaper of the two on Amazon.sa (SAR 7,349 vs SAR 6,979, checked 1 Nov 2026).
Specifications side by side
| Spec | Garmin tactix 8 | Garmin Descent Mk3i |
|---|---|---|
| Phone, battery and calls | ||
| Battery life | 29 days | 1 days |
| Built-in GPS | Yes | Yes |
| Size, screen and durability | ||
| Water resistance | 10 ATM | 20 ATM |
| Case material | Titanium | — |
| Weight | 122 g | 104.3 g |
| Case size | 51 mm | 51 mm |
| Display type | AMOLED | AMOLED |
| Display size | 1.4 in | 1.4 in |
| Health and payments | ||
| ECG | Yes | No |
| Blood oxygen (SpO2) | — | Yes |
| Heart-rate tracking | Yes | Yes |
| Contactless payment (NFC) | Yes | Yes |
| Other specs | ||
| Dimensions | 5.1 x 5.1 x 1.5 cm | — |
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