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Garmin Forerunner 170 vs Garmin Forerunner 970

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

Better figure, where one is clearly better

GarminForerunner 170GarminForerunner 970
Overview
ReleasedMay 2026May 2025
Display
Case sizes42.6 mm47 mm
PanelOLEDOLED
Always-on displayYesYes
Display detail1.2-inch (30.4 mm diameter) colour AMOLED touchscreen, 390 x 390 pixels; optional always-on display and large-font setting; five physical buttons1.4″ (35.3 mm) AMOLED colour touchscreen, 454 x 454 pixels; five buttons
Screen protectionChemically strengthened glassSapphire crystal lens
Health and fitness
ECGNoYes
Blood oxygenYesYes
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
SensorsGarmin Elevate wrist heart rate; Pulse Ox; barometric altimeter; compass; gyroscope; accelerometer; thermometer; ambient light sensor; thermometer measures activity/ambient temperature, not overnight skin temperatureGarmin Elevate wrist heart rate monitor; Pulse Ox blood oxygen monitor; barometric altimeter; compass; gyroscope; accelerometer; thermometer; ambient light sensor
Health featuresContinuous heart rate with high/low alerts; HRV status; Body Battery; stress and respiration; advanced sleep, sleep coach, breathing variations and nap detection; smart wake alarm; Health Snapshot; lifestyle logging; Health Status; women's health tracking via Garmin Connect; no ECG appGarmin 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 featuresMore than 80 sports apps; training readiness, status, load, load focus and recovery time; Garmin running, cycling and strength coaching; daily suggested running workouts and quick workouts; wrist-based running dynamics and running power; ground-contact balance requires a compatible accessory; PacePro and grade-adjusted pace; VO2 max and race predictions; cycling power-meter and Varia radar/light support; pool and open-water swimming; no dedicated triathlon mode; Breadcrumb course navigation, point-to-point navigation, back-to-start and TracBack; elevation profile, future elevation plot and Up Ahead; no full routable offline mapsTraining 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 featuresIncident detection during selected activities, assistance and LiveTrack require a paired compatible smartphone; live event sharing is Android-only; screen flashlight, not a separate LED torchIncident detection during select activities; assistance; LiveTrack; live event sharing (Android only); LED flashlight
Battery and connections
Battery life (maker's claim)Up to 10 daysUp to 15 days
In low-power modeUp to 19 days–
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Storage4 GB32 GB
Battery life detailSmartwatch up to 10 days, or 4 days with display always on; battery saver smartwatch up to 19 days; GPS-only GNSS up to 20 hours; all-systems GNSS up to 14 hours; actual life depends on enabled features and usageSmartwatch 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
ChargingGarmin proprietary plug charging/data cable; rechargeable built-in lithium-ion battery; USB charging temperature 0–45 °CGarmin charging cable with proprietary plug
ConnectivityBluetooth and ANT+; GPS, GLONASS and Galileo; no multi-band GNSS; Garmin Pay contactless payments; Android-only text responses and notification images; Connect IQ apps/watch faces/data fields; Garmin Share; controls smartphone music without offline playback; no Wi-Fi, speaker/microphone calls or cellular connectionBluetooth, 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
Storage4 GB memory/history; standard Forerunner 170 does not support offline music playback–
Design
Weight (lightest version)41 g–
SoftwareGarminGarmin
Case materialsFibre-reinforced polymer bezel; silicone band; chemically strengthened glass; 5 ATM water rating; operating/storage temperature –20–60 °CTitanium bezel; sapphire crystal lens; 5 ATM water rating (swim); operating temperature –20 °C to 60 °C
Size42.6 x 42.6 x 11.9 mm; Garmin lists 41 g without a separate body-only weight47 x 47 x 12.9 mm; 56 g (Garmin doesn't give a case-only weight)
BandsStandard 20 mm quick-release two-tone silicone band; fits 126–203 mm wrists22 mm silicone band; takes QuickFit 22 bands; fits 135–205 mm wrists
ColoursBlack with Black/Amp Yellow band; Whitestone with Whitestone/Cloud Blue band; Teal Green and Red Pink belong to the separate Music modelCarbon 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 boxForerunner 170; charging cable; documentationForerunner 970, charging cable, documentation

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