If swimming is the priority, the Garmin Swim 2 is the clearest swim-first alternative in the official product information reviewed here: Garmin documents pool and open-water tracking for distance, pace, stroke count and SWOLF. Apple Watch Ultra 4 suits Apple users who also want a watch rated for high-speed water sports and recreational scuba diving to 40 m. Samsung’s Galaxy Watch Ultra2 is the rugged Samsung-family option, with water-focused features and a stated 100 m rating. These ratings and features are not interchangeable: choose for the activity you actually do, and follow the manufacturer’s limits.
Can I swim with a Samsung Gear S3?
Samsung says Gear S3 can stay under 5 feet of water for up to 30 minutes. The same support guidance advises against high-pressure water and scuba diving, and recommends rinsing the watch with fresh water and drying it thoroughly after seawater exposure. This is manufacturer guidance, not a guarantee for an older watch: impact, wear or previous repair may affect its resistance. Samsung’s water-resistance guidance explains the limits.
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A water-resistance rating does not by itself mean a watch is suited to every aquatic activity, nor does it establish that the watch offers dedicated swim tracking. Samsung’s explanation of ISO 22810:2010 distinguishes controlled static test conditions from real-world exposure, and cautions against scuba diving and high-velocity water exposure for the legacy devices discussed there. Samsung’s explanation of water-resistance ratings covers the distinction.
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For lap or open-water swimmers who want swim metrics first, Garmin Swim 2 is the best-supported choice among these options. If you also need broad smartwatch functionality or water-sport capability, the Apple and Samsung alternatives below may fit better. Compare activity limits, phone compatibility, battery expectations, fit and local availability rather than treating depth rating as a complete measure of suitability.
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| Watch | Best suited to | Officially documented water and swim information | Important qualification |
|---|---|---|---|
| Garmin Swim 2 | Pool and open-water swimming, especially when swim metrics matter most | Garmin lists distance, pace, stroke count and SWOLF tracking. Its manual rates it Swim, 5 ATM. | The cited material establishes its swim focus, not that it is the best general-purpose smartwatch. Check current local availability and ecosystem fit. |
| Apple Watch Ultra 4 | Apple users combining swimming with high-speed water sports or recreational scuba diving | Apple lists 100 m water resistance under ISO 22810:2010 and recreational scuba diving to 40 m under EN13319. | Apple recommends Series 2 and later for shallow-water swimming; its guidance identifies Ultra and later for high-speed water sports such as water skiing. |
| Samsung Galaxy Watch Ultra2 | Samsung-family users looking for a rugged watch with water-focused features | Samsung lists 100 m water resistance under ISO 22810, EN13319 certification, and depth, time and temperature tracking. | Check local feature availability and follow activity-specific instructions. Samsung says resistance can diminish over time. |
| Samsung Gear Sport (legacy) | Readers specifically considering an older Samsung watch | Samsung describes it as a 5 ATM watch suitable for shallow-water activity. | Consider only as a used or refurbished candidate; the cited material does not establish current stock or continuing software support. |
Garmin Swim 2: swimming metrics and battery estimates
Garmin’s product information lists pool and open-water swim tracking, including distance, pace, stroke count and SWOLF. The Garmin Swim 2 owner’s manual, dated September 2023, estimates up to 7 days in watch mode and up to 14 hours in GPS mode. Those are manufacturer estimates, not guaranteed runtime; actual use can differ. Garmin Swim 2 product information and the Garmin Swim 2 owner’s manual specifications provide the details.
Apple Watch Ultra 4: swimming plus more demanding water use
Apple lists Ultra 4 at 100 m water resistance under ISO 22810:2010 and says it is suitable for recreational scuba diving to 40 m under EN13319. Apple’s support guidance draws an important line: Series 2 and later support shallow-water swimming, while Ultra and later are recommended for high-velocity water activities such as water skiing. These claims are activity-specific, not permission to use every Apple Watch model for every water sport. Apple’s water-resistance guidance and Apple Watch Ultra 4 technical specifications state the limits.
Samsung Galaxy Watch Ultra2: Samsung-family water features
Samsung says Galaxy Watch Ultra2 has 100 m water resistance under ISO 22810, EN13319 certification, and features for tracking water depth, time and temperature. The company also cautions that resistance can diminish over time. Check the model’s instructions and whether the particular features are available in your region before relying on them. Samsung’s Galaxy Watch Ultra2 announcement lists its claims.
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Samsung describes Gear Sport as a 5 ATM product intended for shallow-water activity. It may interest someone set on an older Samsung device, but a rating alone does not show that a used unit remains water-resistant; age, damage and service history matter. The available official information here does not establish ongoing software support or current inventory.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can I use a swim watch in open water?
Only if the specific watch documents open-water swim support. Garmin lists that activity for Swim 2, alongside pool swimming. Before buying, check whether the watch tracks the metrics you need and whether GPS is available for the activity; a water-resistance rating alone does not establish open-water tracking capability. For Apple or Samsung models, consult the activity-specific instructions rather than inferring open-water suitability from a depth figure.
How to choose the right alternative
Start with the activity, then compare the watch’s explicit limits and features. A pool swimmer, an open-water swimmer, a snorkeler and someone doing high-speed water sports do not necessarily need the same watch.
- Activity: Confirm whether your use is pool swimming, open water, snorkeling, diving or a high-speed sport. Do not infer permission for one activity from a rating given for another.
- Metrics and GPS: For swim-focused training, compare the exact metrics and whether open-water tracking is documented. Garmin Swim 2 has the clearest swim-specific feature list among the products here.
- Phone ecosystem: Consider how the watch fits with your phone and the features you intend to use. The cited product information does not establish a like-for-like ecosystem comparison.
- Battery and comfort: Use the manufacturer’s stated battery estimates as a starting point, and consider fit and comfort for your typical swim. Garmin’s manual provides the estimates noted above; comparable battery figures are not stated in the cited material for the other models.
- Price and availability: Check current local pricing, stock and regional feature availability before choosing. The cited material does not establish current prices or inventory.
- Condition and care: For any older or used watch, consider impacts, seal age and service history. Follow the manufacturer’s care guidance after exposure to salt water.
Can I wear a smartwatch for water sports?
It depends on the watch and the sport. Apple says its standard Series 2 and later models are for shallow-water swimming, while Ultra and later are recommended for high-speed water activities; Ultra 4 is also listed for recreational scuba diving to 40 m. Samsung warns against high-pressure water and scuba diving for Gear S3 and says water resistance can be affected by age and damage. Read the instructions for your exact model and activity before entering the water.
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After seawater exposure, Samsung recommends rinsing with fresh water and drying the watch thoroughly. Apple’s support article, published September 14, 2026, puts its own guidance plainly: “Your Apple Watch is water resistant, but not waterproof.” Water resistance is not permanent, so take particular care with an older, damaged or repaired watch.
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