Garmin Forerunner 165 Running Watch

Forerunner® 165 The Garmin Forerunner 165 is a GPS running smartwatch designed to deliver a complete fitness experience without complexity. Its bright 1.2″ AMOLED touchscreen and lightweight 43 mm case (≈ 39 g) make it comfortable enough for everyday wear or long training sessions. With wrist-based heart rate, built-in GPS, and support for 25+ sports, the watch tracks pace, distance, and performance across running, cycling, strength training, and more — all bundled into a compact, easy-to-use package. Smart notifications, contactless payments via Garmin Pay™, and a clean smartwatch interface give it everyday usability beyond workouts. For those serious about progress, Forerunner 165 offers adaptive workout plans, recovery insights, and detailed health tracking. Daily suggested workouts and race-adaptive training plans help you prepare for events like 5Ks or half-marathons, while recovery tools such as sleep monitoring, Body Battery™ energy levels, and recovery time analysis assist with post-workout planning. Battery life reaches up to 11 days in smartwatch mode (and up to 19 hours in GPS mode), giving you reliable performance for long training cycles. What You'll Love Sleep score and insights Battery life (smartwatch mode): Up to 11 days Pulse Ox blood oxygen: yes (spot-check, during sleep, all day) Garmin Pay™ Music storage Display type: AMOLED (optional always-on mode) Touchscreen Water rating: 5 ATM Specs Strap material: silicone Lens Material: chemically strengthened glass Bezel Material: fiber-reinforced polymer Quick Release bands: yes (20 mm, Industry standard) Physical size: 43 x 43 x 11.6 mm Fits wrists with a circumference of 126-203 mm Weight: 39 g Display Size: 1.2" (30.4 mm) diameter Display resolution: 390 x 390 pixels Color display Large font option Battery type: Lithium ion Battery life: Smartwatch mode: Up to 11 days Battery Saver Smartwatch mode: Up to 20 days GPS-Only GNSS mode: Up to 19 hours All-Systems GNSS mode: Up to 17 hours See Details Charging method: Garmin proprietary plug charger Memory/History: 4 GB PLAN LONG BATTERY LIFE Up to 11 days in smartwatch mode and up to 19 hours in GPS mode for a more complete health and training picture. RECOVERY TIME Know how long to recover before your next intense workout based on recent training, stress, sleep, and activity. SLEEP MONITORING & SLEEP SCORE View sleep score, sleep stages, and insights for improved nightly recovery1. BODY BATTERY™ ENERGY MONITORING Monitor daily energy levels and learn how sleep, stress, and activity influence recovery1. COURSES Create or download training routes in Garmin Connect and sync to your watch. RACE PREDICTOR Estimates potential finish times for 5K, 10K, half-marathon and marathon events. NAP DETECTION Automatically track and evaluate naps to see how they benefit recovery and energy. BREATHING VARIATIONS Monitor sleep breathing shifts for insight into lifestyle impact & potential sleep disorders2. WOMEN’S HEALTH TRACKING Log menstrual cycles or pregnancy and receive wellness guidance. PREPARE WRIST-BASED HEART RATE Measures heart rate continuously to gauge daily effort and training intensity1. WRIST-BASED RUNNING DYNAMICS Tracks cadence, stride length, ground contact time and more for form improvement. VO2 MAX Displays aerobic fitness level and trends over time. INTENSITY MINUTES Tracks moderate and vigorous exercise duration to help meet goals. AUDIO PROMPTS Provides alerts and voice guidance during workouts. STRESS TRACKING See whether you’re experiencing calm, balanced, or high-stress periods. PULSE OX SENSOR Measures blood-oxygen saturation during sleep or wakefulness3. CROSS TRAINING Access free HIIT, strength, yoga, Pilates & cardio workouts in Garmin Connect. HEALTH SNAPSHOT Log a 2-minute scan of key biometrics and generate a shareable wellness report. LIFESTYLE LOGGING Track caffeine, alcohol & habits to see how they affect overall health. ACTIVITY TRACKING Monitors steps, floors, calories burned, distance and more1. FITNESS AGE Estimates body fitness compared to actual age. PERFORM BUILT-IN GNSS Connects to multiple satellite systems for accurate pace, distance & route tracking. WRIST-BASED RUNNING POWER Shows power output for pacing and load control on runs. BUILT-IN SPORTS APPS Includes 25+ activity profiles — cycling, swimming, strength & more. TRACK RUNNING Accurately records track laps and displays distance in meters. PACEPRO™ GPS-based split pacing guidance for optimized race strategy. CONNECT SAFETY & TRACKING Automatic incident detection and manual emergency alerts with live location4. GARMIN PAY™ Tap-to-pay contactless payments at supported terminals. SMART NOTIFICATIONS Receive text messages, calls and alerts when paired with iPhone® or Android™. LIVETRACK Allow friends to view live location and route information3. GARMIN TRAILS Sync thousands of trails for offline use with Garmin Connect+ or Outdoor Maps+. GARMIN CONNECT APP View health stats, training insights, social challenges & progress trends. CONNECT IQ™ STORE Customize with apps, widgets, watch faces & data fields. GOOGLE MAPS™ APP Turn-by-turn directions from your Android phone — view right on the watch. GARMIN SHARE Share runs, locations & courses wirelessly with other Garmin Share devices.