Although knowledgable on many watches and makers, I am not an expert. Manual Winded Watches may need to be wound up and moved around prior to use. No hassle, no issues.
eBay
LIGE No Screen Smart Watch Men's Sports Outdoors Fitness Heart Rate Monitor IP68 Waterproof New Smartwatch For Andrio IOS 2025
Aliexpress UK
Polar H7 Heart Rate Sensor. Original Polar soft chest strap (M–XXL, adjustable). Provides live, accurate heart rate data via Bluetooth Smart. Battery cover slightly dented but still opens and closes without issue.
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Waterproof Smartwatch 2 En 1 Equipped With TWS Earphones Smart Watches Men Women BT Call Music Heart Rate Health Monitor Sports
Aliexpress UK
Polar H9 heart rate sensor with M-XXL pro chest strap Heart rate sensor has had a new battery and been reset ready for pairing. Chest Strap has been cleaned and disinfected. May show minor signs of wear but in full working order.
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2025 New No Screen Smart Watch Men Women Sports Outdoors Fitness Heart Rate Monitor 1ATM Waterproof Smartwatch For Android IOS
Aliexpress UK
The Polar H10 is compatible with the following Polar heart rate sensors: A300, A360, CS100, CS200, CS300, CS400, F6, F1, FS2c, FS3c, FT1, FT2, FT4, FT7, FT40, FT60, FT80, M200, M400, M430, M450, M460, (Polar App on) M600, Polar Loop, Polar Loop 2, Polar loop Crystal, Polar Move, RCX5, RS100, RS300X, RS400, V800, V650.
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2025 New Outdoor Smart Watch Waterproof Blood Pressure Oxygen Heart Rate Health Fitness Monitor Men Women Sports Smartwatch
Aliexpress UK
Item Used - Good Condition - New Battery fitted in the FT7.
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LIGE New 1000mAh Battery Smart Watch Men Women 2.04” HD Screen Bluetooth Call Women Watches Heart Rate Monitor Sports Smartwatch
Aliexpress UK
From the rigorous of gym training to the tranquillity of yoga, the versatile M-XXL chest strap accommodates a range of body types, ensuring a secure and comfortable fit. Boasting features like Bluetooth connectivity, water resistance, and an easy-to-read average heart rate display, the Polar H7 is an essential gadget for any health-conscious individual.
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New Smart Watch Women Waterproof Bluetooth Call Sports Fitness Heart Rate Monitor Smartwatch Digital Women's Smartwatches Gifts
Aliexpress UK
Monitor Your Heart Rate With Maximum Precision And Connect Your Heart Rate To A Great Variety Of Training Devices With Bluetooth And Ant+. Polar H10 Can Be Connected To Bluetooth And Ant+ Devices Simultaneously.
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Infinix XWatch 3GT XW3GT Deep Grey EU Smartwatch Unisex Fitness Tracker Heart Rate Monitor Waterproof Activity Tracker
Aliexpress UK
Model: F11. Notes: new battery fitted 20.05.2025. Although we have tested the item and appears to be working, we may not be able to check every single function. You will only get what is pictured.
eBay
NORTH EDGE Mens Smart Watch Heart Rate Monitor Women Smartwatch Swmming Running Pedometer Alarm Clock Waterproof 50m Android IOS
Aliexpress UK