Design. is dustproof and water-resistant. Garmin Forerunner 245. Garmin Vivoactive 4. The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water. sweat resistance. Garmin Forerunner 245. It has faster transfer rates and improved security compared to its predecessors – a, b, and g. Compatible with external heart rate monitors. Garmin Forerunner 245 ( Garmin Connect Mobile) Suunto 5 Peak ( Suunto App) It supports third-party heart rate monitors to incorporate your pulse data. Available on PC. The FR45 is likely done getting any significant updates and the FR245 is going to join the FR45 very soon as it was just replaced this summer with the FR255. 245 has been getting more updates than the 55. 245 also has more features. If the price is the same, the 245 will be a better buy. Garmin Forerunner 45 vs. 55 vs. 245: Price. ①The Garmin Forerunner 45 is Garmin’s entry-level running watch, which at the time of writing costs $199.99 on the Garmin website. ②Garmin Forerunner 55 is the successor to Forerunner 45/45S, and it comes with additional features. Overall, the Forerunner 245 dominates the 735XT in over 7 different ways, namely: Music storage; Garmin running coach; Pulse Oximeter; Body battery score; Stress tracking; Galileo Satellite; Better battery life; The only reason to choose the 735XT over the Forerunner 245 is if you do triathlons. Design. is dustproof and water-resistant. Garmin Forerunner 245. Garmin Forerunner 255S. The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water. sweat resistance. Garmin Forerunner 245. The device can connect at a greater distance via Bluetooth or infrared to another device. Compatible with external heart rate monitors. Garmin Forerunner 245 ( Garmin Connect Mobile) Garmin Forerunner 45S 42mm ( Garmin Connect Mobile) It supports third-party heart rate monitors to incorporate your pulse data. Tracks distance. Garmin Forerunner 735XT. Suunto 7. It tracks how far you travel. Measures pace. Garmin Forerunner 735XT. Suunto 7. Measuring pace shows how much time it takes to travel one kilometer or one mile. For example, in running, a 4 minute kilometer would be a very good pace. A dedicated community for Garmin users to ask questions, provide answers, and share feedback. Forerunner 735XT . Forerunner 245 Series. Hi everyone!This is a comparison of the Garmin Forerunner 55 White Smartwatch (released 2021) vs the Garmin Vivoactive 4S Dust Rose Light Gold Smartwatch (re ep0B.