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Garmin fēnix® 8 51 mm Solar Sapphire Unisex Watch
Ref. 010-02907-21
Sits in Garmin’s upper tier here — more premium than three quarters of the Garmin watches we list, which start at £130.
Price range £130 to £2,799 across 87 Garmin watches in stock.The fēnix 8 is the direct successor to the fēnix 7 Pro line, carrying forward its multi-sport credentials while adding a built-in microphone and speaker for voice commands — a first for the series — alongside revised mapping software and an updated interface. The solar-charging lens is not a token gesture: under good light it pushes standard smartwatch battery life out to 48 days, which changes how you think about charging on a long expedition. At 51mm and 95 grams the watch makes no attempt to be unobtrusive, but the fibre-reinforced polymer body keeps that weight lower than an all-metal case of this scale would reach, and the titanium bezel and metal caseback give the construction a grounding that pure resin would not. The 26mm QuickFit strap swaps without tools, which matters when the amp yellow silicone suits the trail but not the office. Dual-frequency GPS and leakproof inductive buttons — the latter enabling genuine dive use to 40 metres — sit alongside the altimeter, compass and optical heart rate sensor, making this a functional instrument first and a wearable second.
- Reference
- 010-02907-21
- Brand
- Garmin
- Collection
- Fenix 8
- Case size
- 51mm
- Case material
- Resin
- Case shape
- Round
- Dial
- Black
- Functions
- Chronograph, Date, Stopwatch, Countdown timer, Alarm, Backlight, World time, Solar powered, Bluetooth, Step counter, Heart rate, GPS, Compass, Thermometer, Altimeter
- Water resistance
- 100m
- Bracelet / strap
- Silicone strap
- Strap colour
- Yellow
- Retailer
- Goldsmiths
Additional specifications
- Warranty
- 2 years
Learn more about Garmin
Gary Burrell and Min Kao founded Garmin in 1989 — the name is a contraction of their first names — to build GPS receivers for aviation and marine use. Consumer navigation came later, and wearables later still.
Unlike most names in this directory that arrived from outside watchmaking, Garmin is not a licence. It designs and builds its own devices, writes its own software and runs its own satellite-positioning stack, which is why its watches do things Swiss houses do not attempt.
The fenix line established the template in 2012: a rugged multi-sport GPS watch with mapping, altimeter and week-long battery life. Forerunner covers running, Instinct the hard-wearing end, Venu the smartwatch end, and the MARQ line puts the same electronics in titanium and sapphire at Swiss prices.
Battery life is the differentiator. Where most smartwatches are measured in days, Garmin measures in weeks, and in solar-charging models sometimes in months.
These are instruments rather than heirlooms, and they date the way electronics date — but for anyone who actually trains, they are among the few watches on the market that earn their place.
- 1989
- Founded by Gary Burrell and Min Kao.
- 2003
- The Forerunner brings GPS to running watches.
- 2012
- The fenix line defines the multi-sport GPS watch.
- 2019
- MARQ places the electronics in titanium and sapphire.
- 2020
- Solar charging extends battery life to months.
Also in 5 collections
This watch appears in the Garmin Fenix 8 range (6), Back in Stock (5,420), Chronograph Watches (1,377), Watches 44mm and Over (956) and Solar & Kinetic Watches (248).
Best of 2 retailers
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Second time zone for travelling
- One of Garmin's more premium watches
Worth knowing
- 51mm is a large watch with real presence
Garmin fēnix® 8 51 mm alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 010-02907-21 | GMC-B2100D-1AER | JY8110-51E |
|---|---|---|---|
| Price | £859 | £739 | £799 |
| Case size | 51mm | 51.5mm | 47mm |
| Water resistance | 100m | 200m | 200m |
| Movement | Solar | Solar | Solar |
| Strap | Silicone strap | Stainless steel bracelet | Titanium bracelet |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It charges from light, and the cell behind that is designed to last a decade or more.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as unisex, and at this size it suits any wrist that takes the dimensions.
Cheapest place to buy
Both Mappin & Webb and Goldsmiths list it at £859, so choose on delivery and warranty rather than price.
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