Request a product

Fitbit Edge vs Garmin Forerunner 170

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

Better figure, where one is clearly better

FitbitEdgeGarminForerunner 170
Overview
ReleasedComing Available to pre-order; retail availability starts 27 October 2026.May 2026
Display
Case sizes39.22 mm42.6 mm
PanelOLEDOLED
Always-on displayYesYes
Display detail1.34-inch (34 mm) AMOLED colour display; backlit; adjustable brightness; always-on option1.2-inch (30.4 mm diameter) colour AMOLED touchscreen, 390 x 390 pixels; optional always-on display and large-font setting; five physical buttons
Screen protection–Chemically strengthened glass
Health and fitness
ECGYesNo
Blood oxygenYesYes
Skin temperatureYesNo
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandSingle-band
Water resistance50 m50 m
SensorsAltimeter; accelerometer; gyroscope; red and infrared SpO2 sensors; electrical sensors for ECG; optical heart rate sensor; ambient light sensor; far-field skin temperature sensorGarmin Elevate wrist heart rate; Pulse Ox; barometric altimeter; compass; gyroscope; accelerometer; thermometer; ambient light sensor; thermometer measures activity/ambient temperature, not overnight skin temperature
Health featuresECG app and irregular rhythm notifications in supported countries; high and low heart rate alerts; sleep tracking; SpO2 and nightly skin temperature variation; readiness and cardio load. Health Guardian blood pressure and insulin resistance trends are wellness trends, not clinical measurements; availability varies and rollout is listed as coming soon.Continuous 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 app
Fitness featuresBuilt-in GPS and elevation tracking; steps, distance, pace, Active Zone Minutes and VO2 max; live heart rate broadcasting. UK specifications list 40+ exercise modes, while the launch article and support guide describe more than 50; the launch article describes automatic recognition of up to 100 workouts.More 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 maps
Safety features–Incident detection during selected activities, assistance and LiveTrack require a paired compatible smartphone; live event sharing is Android-only; screen flashlight, not a separate LED torch
Battery and connections
Battery life (maker's claim)Up to 7 daysUp to 10 days
In low-power mode–Up to 19 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Storage–4 GB
ChipAmbiq AP5 MCU–
Battery life detail65 mAh typical lithium-ion battery; up to 7 days, with Google's maximum-life test using a Battery Saver feature profile; up to 2 days with always-on display enabled; user-replaceable batterySmartwatch 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 usage
ChargingUSB-C fast charging cable; about 90 minutes to 100%; 5 minutes for up to one day of use when battery is lowGarmin proprietary plug charging/data cable; rechargeable built-in lithium-ion battery; USB charging temperature 0–45 °C
ConnectivityBluetooth 5.4; GPS, Galileo, GLONASS, BeiDou and QZSS; Android 11 or newer and iOS 16.4 or newer; Google Account and Google Health app required; Android quick replies; Bluetooth media controls; Google Maps navigation listed as coming soonBluetooth 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 connection
Storage64 MB NOR flash; 7 days of minute-by-minute motion data; daily totals for 30 days; heart rate data at 2-second intervals4 GB memory/history; standard Forerunner 170 does not support offline music playback
Design
Weight (lightest version)17.7 g41 g
SoftwareOtherGarmin
Case materialsHousing made from 100% recycled aluminium; 5 ATM and IP68 ratingsFibre-reinforced polymer bezel; silicone band; chemically strengthened glass; 5 ATM water rating; operating/storage temperature –20–60 °C
Size39.22 × 25.56 × 11.58 mm; 17.7 g without band42.6 x 42.6 x 11.9 mm; Garmin lists 41 g without a separate body-only weight
BandsSilicone Active Band with soft-touch coating; small fits 130–170 mm wrists and large fits 170–210 mm, both included. Stephen Curry Special Edition recycled-polyester band fits 150–195 mm wrists.Standard 20 mm quick-release two-tone silicone band; fits 126–203 mm wrists
ColoursMatte Black with Obsidian; Satin Silver with Fog; Satin Pyrite with Olive; Champagne Gold with Canyon; Satin Pyrite with Stephen Curry Special Edition band (UK specifications)Black with Black/Amp Yellow band; Whitestone with Whitestone/Cloud Blue band; Teal Green and Red Pink belong to the separate Music model
In the boxEdge tracker; small and large Active Bands; USB-C fast charging cable; quick start guideForerunner 170; charging cable; documentation

More comparisons