If you are thinking about buying a Garmin Fenix watch or upgrading to a newer model, it is important to understand the differences between the Fenix 6, Fenix 7 and Fenix 8. Each generation improves on the last, offering better performance, tracking features, and display quality.
However, one thing that often gets overlooked is strap compatibility. Each Fenix generation comes in multiple sizes, which directly affects which replacement straps will fit your device.
Let’s explore how the models compare and what to check before choosing a new strap.
🔍 Garmin Fenix Size Options
All three Fenix generations are available in three case sizes:
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Fenix S – Compact size, ideal for smaller wrists
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Fenix – Standard size, the most balanced option
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Fenix X – Largest display and longest battery life
These different sizes use different QuickFit™ strap widths:
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Fenix S: 20 mm
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Fenix: 22 mm
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Fenix X: 26 mm
Before buying a new strap, you need to make sure you are choosing the correct width for your specific model and size. Not sure how to check? We have made it easy with this simple guide:
👉 How do I know my Garmin watch strap size?
💷 Price Comparison (UK RRP)
| Model | Starting Price (UK) | Solar Option | AMOLED Display |
|---|---|---|---|
| Fenix 6 | From £449 | Yes (select models) | No |
| Fenix 7 | From £599 | Yes (improved solar) | No |
| Fenix 8 | From £729 | Yes | Yes (select models) |
Prices can vary depending on the size and material (standard, solar, sapphire, titanium). Older models like the Fenix 6 may now be available at discounted prices.
⚙️ Feature Comparison Table
| Feature | Fenix 6 | Fenix 7 | Fenix 8 |
|---|---|---|---|
| Touchscreen | No | Yes | Yes |
| Battery Life | Up to 21 days (non-solar) | Up to 28 days (non-solar) | Up to 30 days (non-solar) |
| Solar Charging | Select models | Wider availability | Advanced solar across most models |
| AMOLED Display | No | No | Yes (on select models like 8 Pro) |
| Real-Time Stamina | No | Yes | Yes |
| Multi-band GNSS | No | Yes (Sapphire models) | Yes (all models) |
| Flashlight (LED) | No | Yes (Fenix 7X) | Yes (available in more variants) |
| Music Storage | Yes | Yes | Yes |
| Training Readiness & HRV | No | Basic availability | Fully integrated |
🎯 Which Garmin Fenix Should You Choose?
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Choose Fenix 6 if you want great performance at a lower price. It’s still highly capable for most sports and outdoor tracking.
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Choose Fenix 7 if you want touchscreen controls, better solar features and more training data.
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Choose Fenix 8 if you want the latest in fitness tracking, AMOLED display and best overall design.
🛠️ Choosing the Right Strap Size
No matter which Fenix you choose, strap size depends on your watch’s case size. This is especially important if you're buying a replacement strap or upgrading your look with a silicone, nylon or metal option.
To avoid ordering the wrong size, check your current strap or refer to your watch’s model number. If you are unsure, our quick guide will help you measure or identify your strap:
👉 Check your Garmin watch strap size
🛍️ Shop Garmin-Compatible Watch Straps
At The Time Club, we offer a carefully tested range of straps compatible with the Fenix 6, 7 and 8 series in all sizes. Whether you need a secure strap for training, or a more stylish option for everyday wear, we have got you covered.
Explore our full Garmin strap collection and find the perfect fit for your wrist and lifestyle.
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