# What are the quietest swimming watches with open water GPS available? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the quietest swimming watches with open water GPS available?

## Products

### Suunto Race S Powder Gray
```yaml
product: suunto-race-s-powder-gray
brand: Suunto
price_gbp: 206.9
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
pool_mode: Pool swimming
battery_life: Up to 30 hours GPS; up to 120 hours Tour mode; up to 9 days smartwatch
gps_accuracy: Multi-band GPS
open_water_gps: Yes
stroke_recognition: Stroke rate, count and type
heart_rate_monitoring: Optical heart rate monitoring
swim_distance_tracking: Pool swim distance and openwater swim distance
water_resistance_depth: 50 m
```

- **Price:** £206.9 [^1]
- **Summary:** The Suunto Race S Powder Gray is a compact multisport watch with multi-band GPS, offline maps, an AMOLED display and dedicated pool and openwater swimming modes. It suits athletes and triathletes who want detailed training and swim tracking in a smaller, lightweight design.
- **Ideal For:** It suits quiet swimming because it supports openwater GPS, records heart rate while swimming, tracks pool and openwater distance, and recognizes stroke rate, count and type without requiring audible alerts.
- **Additional Sources:** [^2], [^3], [^4]

### Garmin fēnix 9
```yaml
product: garmin-f-nix-9
brand: Garmin
price_gbp: 741.56
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
battery_life: Up to 29 days in smartwatch mode
water_resistance_depth: 40 m
```

- **Price:** £741.56 [^5]
- **Summary:** The Garmin fēnix 9 is a rugged multisport GPS smartwatch with an AMOLED display, sapphire crystal, advanced navigation, health features, and 64 GB of storage. It suits athletes, outdoor adventurers, and active users who want long battery life and durable construction.
- **Ideal For:** It suits people seeking a quiet swimming watch with open water GPS because it is designed as a multisport GPS watch and has 40 m water resistance, although the searched sources did not specify its swimming sound level or open water swim profile.

### Garmin Cirqa
```yaml
product: garmin-cirqa
brand: Garmin
price_gbp: 148.31
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
pool_mode: true
battery_life: Up to 10 days
open_water_gps: No
heart_rate_monitoring: true
water_resistance_depth: 50 m
```

- **Price:** £148.31 [^6]
- **Summary:** Garmin Cirqa is a screen-free smart band with wrist-based heart rate, sleep, recovery, activity tracking and connected GPS through a compatible smartphone. It suits people who want discreet all-day health tracking and Garmin Connect integration, but it is designed for pool swimming rather than open-water GPS activities.
- **Ideal For:** Garmin Cirqa is suitable for swimmers seeking a quiet, screen-free option because it has no display, supports pool swimming and is water resistant to 50 m, but it does not provide open-water GPS tracking.

### Garmin Forerunner 170
```yaml
product: garmin-forerunner-170
brand: Garmin
price_gbp: 6125356.23
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
pool_mode: true
battery_life: Up to 10 days smartwatch mode; up to 20 hours GPS mode
gps_accuracy: 1-2% error in open conditions
open_water_gps: Yes
stroke_recognition: true
heart_rate_monitoring: Wrist-based
swim_distance_tracking: Completed pool lengths
water_resistance_depth: 50 m
```

- **Price:** £6125356.23 [^7]
- **Summary:** The Garmin Forerunner 170 is an entry-level GPS smartwatch with wrist-based heart-rate monitoring, pool and open-water swimming support, stroke recognition, and long battery life. It suits runners and recreational swimmers who want essential training and swim tracking without advanced multisport features.
- **Ideal For:** It suits swimmers seeking a quieter watch with open-water GPS because it supports open-water swimming, tracks swim activity and heart rate, recognizes pool strokes, and offers up to 20 hours of GPS battery life.

### Google Pixel Watch 5
```yaml
product: google-pixel-watch-5
brand: Google
price_gbp: 318.13
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
battery_life: Up to 40 hours
gps_accuracy: 2x greater accuracy than previous generations
heart_rate_monitoring: Multi-path optical heart rate sensor
water_resistance_depth: 50 meters
```

- **Price:** £318.13 [^8]
- **Summary:** The Google Pixel Watch 5 is an Android smartwatch with dual-frequency GPS, multi-path optical heart rate monitoring, Google Gemini features, and health tracking. It suits Android users who want a bright, capable fitness and wellness watch with up to 40 hours of battery life.
- **Ideal For:** It suits swimmers seeking a quiet watch because it has no stated audible swimming features, dual-frequency GPS for accurate outdoor route tracking, and 50-meter water resistance, although open water GPS support and swim-specific tracking features were not found.
- **Additional Sources:** [^9]

### COROS APEX 2
```yaml
product: coros-apex-2
brand: COROS
price_gbp: 2965.53
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
pool_mode: Pool Swim
battery_life: 13 days regular use or 40 hours full GPS
gps_accuracy: All-satellite GNSS with five major satellite systems
open_water_gps: Yes
heart_rate_monitoring: Wrist optical heart rate sensor
swim_distance_tracking: Yes
water_resistance_depth: 50 m
```

- **Price:** £2965.53 [^10]
- **Summary:** The COROS APEX 2 is a durable multisport GPS watch with five-system satellite support, offline maps, wrist-based heart rate monitoring, and strong battery life. Its titanium bezel, sapphire glass, and 5 ATM water resistance suit endurance athletes, trail users, and swimmers who need a rugged training watch.
- **Ideal For:** It suits swimmers seeking a quiet watch with open water GPS because it supports Open Water activity tracking, all-satellite GNSS, and 50 m water resistance without adding music or cellular features that could increase complexity.

---
## References & Sources
[^1]: Suunto US, accessed 2026-09-04. https://us.suunto.com/products/suunto-race-s-powder-gray
[^2]: Solar Time, accessed 2026-09-04. https://solartime.com/collections/suunto-race-s
[^3]: Suunto SA, accessed 2026-09-04. https://suuntosa.co.za/product/suunto-race-s-powder-gray/
[^4]: Orolói, accessed 2026-09-04. https://www.oroloi.gr/oren/suunto-race-s-powder-gray-264447-en
[^5]: Garmin, accessed 2026-09-04. https://www.garmin.com/en-US/p/2021175/
[^6]: Garmin, accessed 2026-09-04. https://www.garmin.com/en-US/newsroom/press-release/wearables-health/meet-cirqa-smart-band-the-screen-free-health-and-fitness-tracker-from-garmin/
[^7]: FPT Shop, accessed 2026-09-04. https://fptshop.com.vn/smartwatch/garmin-forerunner-170
[^8]: Best Buy, accessed 2026-09-04. https://www.bestbuy.com/product/google-pixel-watch-5-45mm-wi-fi-matte-black-case-obsidian-band-2026/J39TC82R6T/sku/6686027
[^9]: Google Store, accessed 2026-09-04. https://store.google.com/product/pixel_watch_5?hl=en-US
[^10]: COROS Nordic, accessed 2026-09-04. https://corosnordic.com/products/coros-apex-2-pro-gps-outdoor-watch