Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
If you are interested in more details, you can find full information on the seller's page.
Small teal fitness band.
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Fitbit Charge HR Teal Small size
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Fitbit Charge 6 Porcelain / Silver Aluminum Aluminium case with an AMOLED display
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Fitbit Charge 6 Obsidian/Black Aluminum AMOLED display and aluminium case.
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Fitbit Surge Black Identified as a heart rate monitor.
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Fitbit B57 Fitness smart bracelet
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Fitbit Sense 2 Shadow Grey / Graphite Aluminum
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| Brand | Fitbit | Fitbit | Fitbit | Fitbit | Fitbit | Fitbit |
| Model | Charge HR | Charge 6 | Charge 6 | Surge | B57 | Sense 2 |
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| Price | €58.58 | €144.16 | €144.16 | €205.74 | €10.09 | €225.28 |
| Seller | Newegg | Newegg | Newegg | Newegg | Alibaba | Newegg |
| Update | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 | Nov 12, 2026 |
| Model Name | Charge HR | Charge 6 | Charge 6 | Surge | B57 | Sense 2 |
| Part Number | Fitbit-FB405TES | GA05185-NA | GA05183-NA | SURGE-BLACK-SM | ||
| Product Type | Fitness band | Health and fitness tracker | Health and fitness activity tracker | GPS fitness watch | Fitness smart bracelet | Smartwatch |
| Case Material | Aluminium | Aluminium | Aluminium | |||
| Display Technology | AMOLED | AMOLED | AMOLED | |||
| Battery Life per Charge | Up to 7 days; use of the always-on display and SpO2 features requires more frequent charging. Average battery life is approximate. | Up to 7 days. Use of the always-on display and SpO2 features requires more frequent charging. | 6+ days; battery life and charge cycles vary with use, settings and other factors, and actual results will vary. Always-on display, SpO2 and cEDA sensor use require more frequent charging. | |||
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