T-Rex 3 Pro vs Garmin Forerunner 165
Side-by-side on the specs that matter, with category winners and an opinionated take to help you decide.
This is a choice between a budget-friendly smartwatch with lifestyle features and a dedicated running watch from a fitness-first brand.
Pick the T-Rex 3 Pro if you want a rugged, long-lasting smartwatch for everyday notifications and casual activity tracking.
Pick the Garmin Forerunner 165 if you are a runner or serious athlete who prioritizes detailed performance metrics and training guidance.
- —The T-Rex 3 Pro likely offers longer battery life but less sophisticated sports analytics.
- —The Garmin Forerunner 165 provides superior running metrics but may have a less versatile smartwatch design.
- —Garmin's ecosystem excels for fitness, while Amazfit's may focus more on general smart features and value.
Full specs
Ask anything — we'll answer with T-Rex 3 Pro and Garmin Forerunner 165 in mind for home use.
Pindear may earn a commission when you buy through these links. Winners are determined by numeric spec comparisons only; non-numeric features (app quality, ecosystem, real-world feel) are covered in the verdict.