This model from Apple has many useful features. Use the built-in heart rate monitor to keep track of your training progress.
From Argos
Apple Watch SE 44mm Alu Case/Midnight Sport Band 2023 - S/M
Major Mobiles
Apple Watch SE 2nd Gen 44MM GPS (Brand New), Midnight Aluminum Case with Midnight Sport Band / M/L - fits 150–200mm wrists
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