Garmin Forerunner 170
A running, entry-level GPS watch by Garmin, released in 2026.
White
Watch profile
Runometry IndexRoad 80
- GPS
- 20 h
- maps
- not stated
- screen
- AMOLED
- weight
- 41 g
- water rating
- 5 ATM
Spec sheet
Every value is read on the brand’s page; hover it to see its source and date.
Battery
Will it last your ultra, your week?
- Smartwatch mode
- 10 days
- GPS battery life
- 20 h
Navigation
For trail, ultra and the mountains
- Course guidance
- yes
- Back to start
- yes
Screen and size
Readability, comfort on the wrist, swimming
- Screen type
- AMOLED
- Screen size
- 1.2″
- Resolution
- 390 x 390 pixels
- Touchscreen
- yes
- Buttons
- 5
- Glass
- other
- Case
- 42.6 mm
- Thickness
- 11.9 mm
- Weight
- 41 g
- Bezel
- polymer
- Water rating
- 5 ATM
Sensors
How precise the measures are
- Wrist heart rate
- yes
- Pulse oximeter (SpO2)
- yes
- Barometric altimeter
- yes
- Compass
- yes
Training
For the runner, the triathlete, Hyrox
- Load and recovery
- yes
- Running power
- yes
- Strength and HIIT
- yes
- Structured workouts
- yes
- Training plans
- yes
Everyday
Living with it, outside workouts
- Onboard music
- no
- Contactless payment
- yes
- Wi-Fi
- no
Spec sheets read at: garmin.com
Who is it for?
The sports the brand announces, and the features that go with them.
Running
- Load and recovery: yes
- Running power: yes
- Structured workouts: yes
- Training plans: yes
Trail running
- Barometric altimeter: yes
- GPS battery life: 20 h
Hyrox & hybrid training
- Strength and HIIT: yes
- Wrist heart rate: yes
Forerunner 165 → Forerunner 170: what changes
The values the brand publishes, side by side.
- Smartwatch mode−1 days
11 days10 days
- GPS battery life+1 h
19 h20 h
- Case−0.4 mm
43 mm42.6 mm
- Thickness+0.3 mm
11.6 mm11.9 mm
- Weight+2 g
39 g41 g
Comparable watches
The closest on battery life, screen, weight, water rating and list price.
Polar
Vantage M3
- 30 h GPS
- AMOLED
- 53 g
Frequently asked questions
How long does the Forerunner 170’s battery last with GPS?
Up to 20 h with GPS according to Garmin.
Is the Forerunner 170 waterproof?
Garmin rates it 5 ATM.
Which sizes does the Forerunner 170 come in?
In a 42.6 mm case according to Garmin.