T-Rex 3 Pro Smartwatch 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 fitness tracker with smart features and a dedicated running watch with proven training tools.
Pick the Amazfit T-Rex 3 Pro if you want a durable, long-battery-life watch for general fitness and daily notifications on a budget.
Pick the Garmin Forerunner 165 if you are a runner or triathlete who prioritizes precise metrics and structured workout guidance.
- —T-Rex 3 Pro favors rugged battery life over Garmin's sport-specific analytics.
- —Forerunner 165 offers superior running dynamics but a simpler smartwatch experience.
- —Garmin's ecosystem excels for training; Amazfit provides broader value for casual use.
Full specs
Ask anything — we'll answer with T-Rex 3 Pro Smartwatch and Garmin Forerunner 165 in mind for pro 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.