ExtreLife Keychain, Works with Apple Find My, Bottle Opener, Carabiner Car Key Chains with Gps Tracker vs WHOOP Battery Pack 4.0 – Portable, Wearable, Water-Resistant Charging Component 4.0 Wearable Health, Fitness & Activity Tracker, Not Compatible with Gen 5, Onyx

What we like

• +【Works with Apple Find My】 For iPhone owners,the Extrelife's latest Keychain is an easy top pick for tracking and locating your Key and items. With Apple’s Find My network has by far the largest number of devices, makes it more likely that you’ll recover what you’ve misplaced. It comes with 2 key rings and carabiner, so just connect and go
• +【Loud speaker and Left-Behind Remind】The speaker is also considerably louder than others in the market. Within Bluetooth range (50m/160ft), simply use the Find My app to play a sound and locate your item. Meanwhile, your iphone will receive a notification when the tracker is out of Bluetooth range.This effectively prevents you from forgetting or losing your things. (No subscription fee.)
• +【Durability and Rechargeable Battery】It’s made from rugged stainless steel and metal cases, offers excellent protection against drops and scratches. The Battery of the keychain is rechargeable, last up to 4 Months on a single charge. Comparison with trackers that don’t have replaceable batteries, which means you don't have to replace the entire unit whenever it dies. It saves costs in the long term and makes the tracker sustainable.

What we like

• +FSA/HSA: WHOOP is FSA/HSA eligible! As a certified retailer, you can purchase your WHOOP 4.0 Battery Pack directly with your FSA/HSA card at checkout.
• +LONG-LASTING POWER – Get continuous data for days on a single charge with our battery pack that enables you to charge on-the-go while you wear it.
• +DURABLE & WATER RESISTANT – Designed to provide long-lasting power for years to come. P68 dust-proof and water-resistant up to 1 meter for 2 hours.