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Garmin Forerunner 45 · Photo source
Garmin · Forerunner
Forerunner 45
A 42 mm GPS running watch with wrist heart rate, Garmin Coach and a seven-day smartwatch battery claim.
- Type
- Smart and sports
- Sizes
- 42 mm
- Movement
- –
- Power reserve
- –
- Display
- Memory-in-pixel
- Battery
- 7 days
- Water
- 50 m
- GPS
- Single-band
- Weight
- 36 g
Specifications
Report a wrong or missing specDisplay
- Case sizes
- 42 mm
- Panel
- Memory-in-pixel
- Always-on display
- Yes
- Display detail
- 1.04-inch (26.3 mm) sunlight-readable colour MIP display, 208 x 208 pixels, with button controls.
- Screen protection
- Chemically strengthened glass.
Health and fitness
- ECG
- No
- Blood oxygen
- No
- Skin temperature
- No
- Sleep apnoea alerts
- No
- High blood pressure alerts
- No
- Body composition
- No
- Fall detection
- No
- Crash detection
- No
- GPS
- Single-band
- Water resistance
- 50 m
- Sensors
- GPS, GLONASS, Galileo, Garmin Elevate wrist heart rate and accelerometer.
- Health features
- All-day heart rate, stress and sleep tracking, plus Body Battery energy monitoring.
- Fitness features
- Garmin Coach, VO2 max estimate, running and cycling profiles, indoor track, treadmill, elliptical, cardio and yoga activities.
- Safety features
- Incident detection, assistance and LiveTrack require a paired phone.
Battery and connections
- Battery life (maker's claim)
- Up to 7 days
- Mobile data option
- No
- Works with
- iPhone and Android
- Battery life detail
- Up to seven days in smartwatch mode or 13 hours in GPS mode.
- Charging
- Rechargeable battery with Garmin charging cable.
- Connectivity
- Bluetooth and ANT+; smart notifications, phone music controls and Connect IQ watch faces. No on-watch music storage.
Design
- Weight (lightest version)
- 36 g
- Software
- Garmin
- Case materials
- Silicone band and 5 ATM water rating.
- Size
- 42 x 42 x 11.4 mm; 36 g.
- Bands
- Fits wrists 129–197 mm.
- Colours
- Lava red band with black case.
Pros and cons
Pros
- Up to seven days in smartwatch mode
- Built-in GPS and wrist heart rate in a 36 g design
- Garmin Coach plans and incident detection with a paired phone
Cons
- No on-watch music storage or maps
- Connect IQ support is limited to watch faces
Closest rivals
Model | Type | Sizes | Movement | Power reserve | Display | Battery | Water | GPS | Weight | Released |
|---|---|---|---|---|---|---|---|---|---|---|
| Smart and sports | 42 mm | – | – | Memory-in-pixel | 7 days | 50 m | Single-band | 38.5 g | Apr 2019 | |
| Smart and sports | 42 mm | – | – | Memory-in-pixel | 7 days | 50 m | Single-band | 38.5 g | Apr 2019 | |
| Smart and sports | 42.5 mm | – | – | Memory-in-pixel | 7 days | 50 m | Single-band | 42.2 g | 2018 |
Sources
- garmin.com.sg/products/discontinued/forerunner-45-lava
- garmin.com/en-US/newsroom/press-release/sports-fitness/2019-garmin-announces-an…
- developer.garmin.com/connect-iq/compatible-devices
Photo: leisurelakesbikes.com
- Garmin Forerunner 45, Lava finish, front three-quarter: Garmin
- Garmin Forerunner 45, Lava finish, front view with health statistics displayed: Garmin
- Garmin Forerunner 45, Lava finish, front three-quarter with heart-rate history displayed: Garmin
- Garmin Forerunner 45, Lava finish, side profile: Garmin
- Garmin Forerunner 45, Lava finish, rear three-quarter: Garmin
- Garmin Forerunner 45, Black finish, front three-quarter: Garmin
- Garmin Forerunner 2019 series lineup, including Forerunner 45 and 45S alongside larger models: Garmin
