Polar H9
Score: 83/100
Fitvii Fitness Tracker
Score: 82/100Rankings
The Polar H9 is a chest-mounted ECG heart-rate sensor offering exceptional accuracy and a 400-hour battery life. Its main trade-off is the lack of onboard storage and reliance on a replace-once coin cell battery. Ideal for athletes who need precise data across multiple sports and appreciate dual-protocol connectivity.
Fitvii FITVII Health & Fitness Tracker is a budget-friendly smartwatch offering 24/7 heart rate, blood pressure, SpO₂ monitoring and 120+ sport modes, with up to 7-day battery life and Bluetooth calling. Its limitations include lack of SMS reply capability, a finicky magnetic charger, and water-resistance that doesn't cover hot baths or deep diving. Best suited for beginners and casual fitness enthusiasts seeking a feature-rich, affordable wearable.
| Attribute | | |
|---|---|---|
400 hoursbest | 168 hours | |
| ↓ lower better | 60 gbest | — |
— | 1.69 inbest | |
— | 120best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 400 hours | 168 hours |
Build & Design(1) | ||
Water Resistance (IP Rating) | IP68 | IP67/IP68 |
Products in the top-left offer the best value (high score, low price).
Editors and CrossFit-focused reviewers consider the Polar H9 the best-value chest strap, emphasizing its precise ECG tracking, dual-protocol connectivity, and underwater capability.
Professional reviewers praise Fitvii for its extensive sport mode library, impressive 7-day (15-day low-power) battery life, and the convenience of Bluetooth calling and QR-code pairing, positioning it as a feature-rich yet affordable alternative in the entry-level smartwatch segment.
Everyday users consistently highlight the watch's comfort, light weight, accurate health sensors, fast charging and long battery as major positives, while the inability to reply to SMS and the finicky magnetic charger are the most common complaints.
“"game-changer" - User review on e-commerce site (4/5)”
“"Comfortable, light, stylish (fits like Apple Watch)" - Customer review on retailer site (5/5)”
