Garmin Forerunner 935 vs Garmin Forerunner 970

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Forerunner 935 compared with Forerunner 970
GarminForerunner 935GarminForerunner 970
Overview
ReleasedMarch 2017May 2025
Display
Case sizes47 mm47 mm
PanelMemory-in-pixelOLED
Always-on displayYesYes
Display detail1.2-inch (30.4 mm) sunlight-readable transflective colour MIP display, 240 x 240 pixels, with button controls.1.4″ (35.3 mm) AMOLED colour touchscreen, 454 x 454 pixels; five buttons
Screen protectionGlass lens.Sapphire crystal lens
Health and fitness
ECGNoYes
Blood oxygenNoYes
Skin temperatureNoYes
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandDual-band (L1 and L5)
Water resistance50 m50 m
SensorsGPS, GLONASS, Garmin Elevate wrist heart rate, barometric altimeter, compass, gyroscope and accelerometer.Garmin Elevate wrist heart rate monitor; Pulse Ox blood oxygen monitor; barometric altimeter; compass; gyroscope; accelerometer; thermometer; ambient light sensor
Health featuresAll-day heart rate, steps, sleep and intensity minutes.Garmin ECG App (atrial fibrillation); Pulse Ox spot checks, with optional all-day acclimation and sleep readings; skin temperature; high and low heart rate alerts; HRV status; health status; sleep score, sleep coach, sleep alignment and nap detection; breathing variations; Body Battery; all-day stress; Health Snapshot; lifestyle logging; women's health tracking with past ovulation estimates; jet lag adviser
Fitness featuresRunning, cycling, pool and open-water swimming, triathlon, skiing, hiking and golf profiles; auto multisport switching, training status and load, aerobic and anaerobic training effect, VO2 max, recovery time and course guidance. Running dynamics require a compatible strap or Running Dynamics Pod.Training readiness and training status; running tolerance; running economy and step speed loss (with HRM 600); wrist-based running dynamics and running power; VO2 max, endurance score and hill score; race predictor and projected race time; PacePro; ClimbPro; real-time stamina; Garmin Coach and Garmin Triathlon Coach plans; daily suggested workouts; quick workouts; built-in maps with turn-by-turn directions, dynamic round-trip routing and Up Ahead; triathlon and multisport profiles
Safety features–Incident detection during select activities; assistance; LiveTrack; live event sharing (Android only); LED flashlight
Battery and connections
Battery life (maker's claim)Up to 14 daysUp to 15 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Storage–32 GB
Battery life detailUp to two weeks in smartwatch mode, 21 hours in GPS/heart-rate mode or 44 hours in UltraTrac without wrist heart rate per Garmin Singapore's exact specification table. Garmin's US launch release instead stated 24 GPS hours and 50 UltraTrac hours without matching those conditions.Smartwatch mode up to 15 days; GPS only up to 26 hours; SatIQ (AutoSelect) up to 23 hours; All-Systems + Multi-Band up to 21 hours; with music up to 14, 13 and 12 hours in the same modes
ChargingRechargeable lithium-ion battery with Garmin charging cable.Garmin charging cable with proprietary plug
ConnectivityBluetooth Smart, ANT+ and Wi-Fi; smart notifications, Connect IQ, Garmin Connect, LiveTrack and phone music controls.Bluetooth, ANT+ and Wi-Fi; multi-band GPS with GPS, GLONASS, Galileo, QZSS and BeiDou and SatIQ; Garmin Pay; speaker and microphone for calls and the phone's voice assistant with a paired phone; hands-free voice control
Storage64 MB memory/history.–
Design
Weight (lightest version)49 g–
SoftwareGarminGarmin
Case materialsFibre-reinforced polymer case and bezel with silicone band; 5 ATM water rating.Titanium bezel; sapphire crystal lens; 5 ATM water rating (swim); operating temperature –20 °C to 60 °C
Size47 x 47 x 13.9 mm; 49 g.47 x 47 x 12.9 mm; 56 g (Garmin doesn't give a case-only weight)
BandsQuickFit 22 mm interchangeable band.22 mm silicone band; takes QuickFit 22 bands; fits 135–205 mm wrists
ColoursBlack case with force yellow band.Carbon Grey DLC Titanium with Black case and Black/Translucent Whitestone band; Titanium with Whitestone case and Whitestone/Translucent Amp Yellow band; Soft Gold Titanium with French Grey case and French Grey/Translucent Indigo band
In the box–Forerunner 970, charging cable, documentation

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