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Garmin Forerunner 45S · Photo source
Garmin · Forerunner
Forerunner 45S
A 39.5 mm GPS running watch with wrist heart rate, Garmin Coach and a seven-day smartwatch battery claim.
- Type
- Smart and sports
- Sizes
- 39.5 mm
- Movement
- –
- Power reserve
- –
- Display
- Memory-in-pixel
- Battery
- 7 days
- Water
- 50 m
- GPS
- Single-band
- Weight
- 32 g
Specifications
Report a wrong or missing specDisplay
- Case sizes
- 39.5 mm
- Panel
- Memory-in-pixel
- Always-on display
- Yes
- Display detail
- 1.04-inch colour MIP display, 208 x 208 pixels, with five-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, sleep and stress tracking, plus Body Battery energy monitoring.
- Fitness features
- Garmin Coach, VO2 max estimate and profiles for running, cycling, 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, 12 hours with GPS or 11 hours with GPS and GLONASS, according to Garmin Taiwan. Garmin US lists up to 13 hours in GPS mode.
- Charging
- Rechargeable battery with Garmin charging cable.
- Connectivity
- Smart notifications, phone music controls and Connect IQ watch faces. No on-watch music storage.
- Storage
- Stores up to 200 hours of activity data.
Design
- Weight (lightest version)
- 32 g
- Software
- Garmin
- Case materials
- Silicone band and 5 ATM water rating.
- Size
- 39.5 x 39.5 x 11.4 mm; 32 g.
- Bands
- Fits wrists 124–185 mm.
- Colours
- White case and band with black display bezel.
Pros and cons
Pros
- Compact 39.5 mm case weighing 32 g
- Up to seven days in smartwatch mode
- Garmin Coach 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 mm | – | – | Memory-in-pixel | 7 days | 50 m | Single-band | 36 g | May 2019 |
Sources
- garmin.com.tw/products/discontinued/forerunner-45s-white
- garmin.com/en-US/newsroom/press-release/sports-fitness/2019-garmin-announces-an…
Photo: c1.neweggimages.com
- Garmin Forerunner 2019 series lineup, including Forerunner 45 and 45S alongside larger models: Garmin
- Garmin Forerunner 45S, White finish, front three-quarter: Garmin
- Garmin Forerunner 45S, White finish, front view with health statistics displayed: Garmin
- Garmin Forerunner 45S, White finish, front three-quarter with heart-rate history displayed: Garmin
- Garmin Forerunner 45S, White finish, side profile: Garmin
- Garmin Forerunner 45S, White finish, rear three-quarter: Garmin
- Garmin Forerunner 45S, Iris finish, front three-quarter: Garmin
