Description
The Forerunner 45S personalizes how you train. See how your body responds to exercise, rest and sleep. The optical heart rate monitor takes your pulse straight off your wrist, no need for a chest strap. Running metrics like speed and distance are handled by the onboard GPS and internal accelerometers, turning movement into data and crediting all you do in the gym or trails. Pairing your phone via Garmin Connect to opens a world of smartwatch functionality. Review activities, receive notifications (texts, social media alerts, email), download training plans, keep an eye on the weather, control music apps, and share milestones and encouragement with an online community.
- Built-in activity modes for biking (outdoor), running (outdoor) and walking, with more activities unlockable through free the Connect app, like elliptical training, biking (indoor), running (indoor) stair stepping, yoga and more.
- Internal antenna connects to 3 satellite constellations, GPS, GLONASS and Galileo for a fast connection and a strong GPS signal.
- Internet Live Tracking shared location and heart rate data with friends, family, or coaches via your phone.
- Equipped with Garmin’s new V3 low-profile Elevate™ optical heart rate monitor which provides more reliable constant heart rate data and allows you to train without a chest strap.
- Broadcast of your HR over ANT+.
- VO2 max data lets you see how efficiently your body uses oxygen.
- Incident detection: in case of accident, the unit sends a signal through your phone to your emergency contacts.
- Assistance mode sends a message to emergency contacts via phone.
- Body Battery™ mode tracks your energy levels throughout the day. By monitoring what drains your energy (exercise) and recharges your energy (rest, food, etc.), you get a better idea of how, and when to train.
- Garmin Coach provides free, personalized training plans that you can download through Garmin Connect.
- Stress level score monitors heart rate variability while inactive to guide you to reduce stress.
- 24/7 activity tracking and step counting, 45S learns your activity level and helps guide you towards a more active lifestyle.
- Move bar reminds you to move after being stationary for too long.
- On board sleep tracking mode monitors total sleep and restful sleep.
- Smart notifications (emails, texts, alerts and more) come in via Bluetooth connection to your smartphone.
- Automatically sync your data to a paired smartphone running the free Garmin Connect app.
- Connects with ANT+ and Bluetooth Smart, from foot pods, to speed and cadence pods (not power meters or Varia lights).
- Connect IQ support to download custom watch faces.
- Intuitive 5-button interface works with gloves and in all weather conditions.
- Always-on, colour display is bright and clear in any conditions.
- Internal memory stores up to 200 hours of activities. Garmin Connect will store all of your activity data.
- Rechargeable lithium-ion battery lasts up to 13 hours in GPS mode or up to 7 days in smartwatch mode.
- Fits wrist circumference of 124-185mm.
- In the box: Forerunner 45S, charging cable and documentation.
Tech specs
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Tech specs
| Weight | 32g |
|---|---|
| Ideal for |
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Face material
Polycarbonate is inexpensive and light, with good clarity and wear-resistance. Mineral crystal glass offers greater clarity and significantly greater wear-resistance. Sapphire crystal is better still for clarity and wear-resistance. |
Mineral crystal glass |
| Wrist strap material | Silicone |
|
IPX rating
Indicates the degree of protection against liquid. IP X1: Dripping water while in normal operating orientation; IP X4: Splashing water; IP X5: Water jets; IP X6: Powerful water jets; IP X7: Immersion up to 1m ≤ 30 minutes; IP X8: Suitable for submersion as specified by manufacturer. |
IP X8 |
| Dimensions | 4 x 1.2cm |
| Snooze | No |
| Countdown timer | Yes |
| Stopwatch | Yes |
|
Electronic compass
An electronic compass allows the user to view their heading in situations where they are either standing still or moving too slowly for the GPS to detect. |
No |
| 12/24 hour format | Yes |
| Interface |
|
| Low battery warning | Yes |
|
Calorie consumption
Calculated based on data from a heart rate monitor. |
Yes |
|
App compatibility
An online community where members upload, analyze and share activity data. |
Garmin Connect |
|
Add maps capability
These units allow you to add maps, so you can mark and name waypoints and create routes on your PC, and then upload the map of your choice to your GPS. |
No |
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Programmable workouts
Want an easy jog? A fast-paced ride? A workout with lots of variety to keep you on your toes? With programmable workouts you can tailor your training to match whatever you are looking for on a particular day. |
Advanced |
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New lap auto start
Automatically triggers a new lap after reaching a specified difference. |
Yes |
| Heart rate monitor | Yes |
| Distance/time alarm | Yes |
| Interval training | Yes |
| Bluetooth | Yes |
|
Auto pause
Automatically pauses timer when you stop or go below a specified pace. |
Yes |
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Heart rate in real time
Displays beats per minute during activity. |
Yes |
|
Calories in real time
Displays calorie expenditure during activity, based on heart rate monitor data. |
Yes |
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Speed/cadence sensor
Monitors pedalling cadence and measures pedalling strokes per minute. |
Sold separately |
| Battery life | 13-168 h |
| Chest strap | Sold separately |
|
Custom POI
A POI (point of interest) is a specific location that someone may find interesting (i.e., favourite viewpoint, best coffee stop before the trailhead). The custom POI feature allows the user to load only the POI's that interest them onto their GPS unit. |
Yes |
| Metric/imperial units format | Yes |
|
Power meter
Displays output in watts as you ride. |
Not compatible |
|
Unit to unit transfer
Shares data wirelessly between compatible units. |
No |
|
Basemap
A basic set of map data that is included with the GPS. Basemap detail may vary from unit to unit. |
No |
| Area calculation | No |
| Tide tables | No |
| Battery power indicator | Yes |
| Data card | Not accepted |
|
Foot pod
Attaches to your shoe, captures your running data (i.e., pace, distance), and transmits it to your heart rate monitor or GPS. |
Sold separately |
| Touch screen | No |
|
Heart rate target zones
Displays heart rate zones during activity. |
Yes |
|
Barometric altimeter
Barometer function helps forecast weather trends. An altimeter can provide one line of position for location on a topo map, useful if the GPS isn't working. |
No |
|
Coded signal
A coded instrument ensures no interference between your chest strap and your watch, necessary if you are training in busy gyms or trails where other signals may be encountered. |
Yes |
| Workout history | Yes |
| Wireless sync | Yes |
| WiFi | No |
| Button lock | Yes |
| Batteries | Lithium-ion (included) |
| Haptic feedback | Yes |
| Case diameter | 40mm |
|
Virtual partner
Allows user to monitor training goals with either a virtual partner or alarms. |
Yes |
|
Pause timer
Pauses the timer when slowing or stopping, and automatically resumes when moving again. |
Yes |
| Replaceable wrist strap | Yes |
|
Pace alarm
An alarm that notifies you if you vary from a pre-set pace. |
Yes |
|
ANT+ compatible
Ensures seamless digital wireless communication between ANT+ devices. For example, data from an ultra-low power wireless sensor can be displayed on a bike computer or smartphone, then downloaded to a PC, etc. |
Yes |
| Made in | Taiwan |