fenix 8 Solar Sapphire Sport Watch
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Warning: California Proposition 65
Fenix 8 Solar Sapphire Sport Watch fuses GPS precision with solar-powered endurance
What Our Gearhead® Experts Are Saying:
"I’ve pushed this watch through 20-mile trail runs, alpine starts, and bikepacking weekends—it never quits. The solar charging adds real longevity, and the multi-band GPS locks on even in dense forest or canyons. It’s a powerhouse tool that’s as smart as it is tough."
From the top of 14ers to 40 meters underwater, the Garmin fenix 8 Solar Sapphire Sport Watch tracks our every pursuit. The bomber build meets U.S. military standards for thermal-, shock-, and water-resistance, meaning max grit, while the dive-rated design, leakproof buttons, and sensor guard ensure pressure, submersion, rain, and sweat don't muddle our performance metrics results. Pulling power from the sun, this watch delivers up to 653 hours of tracking in max battery GPS mode, giving us all the time for activities, while maps, round-trip routing, and SatIQ tech ensure we don't get lost when getting after it.
Details
- Top-performance multisport smartwatch with solar-charging lens
- Burly construction withstands rugged conditions and submersion
- Power Sapphire crystal face harnesses the sun and resists scratches
- Battery lasts up to 48 days in smartwatch mode with solar charging
- Built-in LED flashlight to light the way when your headlamp dies
- Built-in speaker for quick voice commands and phone calls
- Tracks activities, location, performance metrics, heart health, sleep, and more
- SatIQ tech, topo maps, turn-by-turn directions, and more to keep you on track
- Item #GRMF07U
- Housing Material
- [bezel] titanium, [case] fiber-reinforced polymer, [rear cover] metal
- Strap Material
- silicone
- Face Material
- Power Sapphire crystal
- Movement
- digital
- Pedometer
- yes
- Odometer
- yes
- Altimeter
- yes
- Barometer
- yes
- Heart Rate Monitor
- wrist-based
- Submersible
- 10ATM (submersible up to 100m)
- Technical Features
- please see size chart for complete list of technical features
- Wireless
- Bluetooth, ANT+, Wi-Fi
- Operating System
- Garmin Connect
- Date Indicator
- yes
- Weekday Indicator
- yes
- Alarms
- clock, goal alert, heart rate alerts, incident detection alert, inactivity alert, configurable lap alert, storm alert, time/distance alerts, custom
- Backlight
- yes
- Battery Type
- rechargeable
- Battery Life
- [smartwatch mode] up to 30 days (48 days with solar), [battery saver watch mode] up to 48 days (107 days with solar), [GPS only] up to 95hr (149hr with solar), [all satellite systems] up to 68hr (92hr with solar), [all satellite systems + multi-band] up to 52hr (65hr with solar), [all satellite systems + music] up to 18hr, [max battery GPS] up to 168hr (653hr with solar), [expedition GPS] up to 50 days (118 days with solar)
- Low Battery Indicator
- yes
- Includes
- fenix 8 Solar Sapphire Smart Watch, charging/data cable, documentation
- Face Size
- 47mm, 51mm
- Claimed Weight
- [51mm] 95g
- Activity
- running, swimming, cycling, mountain bike, hiking, climbing, training, skiing, snowboarding, snowshoeing, paddling, surfing, fishing, racket sports, motor sports
- Manufacturer Warranty
- limited 1 year
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 30 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.View
Selecting an option will reload the available reviews on the pageAugust 21, 2025
Making the invisible, visible
I continue to be amazed at the information this watch collects and presents back to me. I am grateful I did not delay my purchase because of the price although it certainly caused pause. I am still learning how to manage my sleep hygiene and workout routines but have already received helpful insights. I am 70 years old and paying much closer attention to my body's signals, and this watch definitely helps.
Originally reviewed on Garmin
August 21, 2025
Love it so far.
So far so good. Love the watch. Was intimidated by it at first with it being a watch with so many features but I learned it quick. The app helps a lot. Do wish garmin merged all the apps into one tho. And if their maps were slightly better more like other mapping apps.
Originally reviewed on Garmin
August 20, 2025
So many functions!
I'm still learning about what the watch is able to do; the list seems endless. I had been wearing a smart watch that needed to be charged every day. Now I can go two weeks without charging, and longer than that with solar if I pay attention to what I need and don't need. I was skeptical at first about all the health tracking, but the watch has me convinced. I wear it almost 24/7, so I'm learning a lot about my sleep patterns, energy levels, and training readiness. Fantastic product and it looks cool, too!
Originally reviewed on Garmin
August 17, 2025
Awesome watch
I went from the first I stinct solar to the Fenix 8 solar and I love it. Couldn't be happier. I just hope it proves to be as tough as the instinct.
Originally reviewed on Garmin
August 17, 2025
I do like the watch and features but
The watch it self is quite easy to navigate, I definitely still need to learn some things. But I wish the app was nicer and easier to navigate. I find my self getting confused. I also Don't like the app store for the watch is on a separate app. I have used other watches and this is my first Garmin. I definitely like the other apps more.
Originally reviewed on Garmin
August 13, 2025
Love My New Garmin Fenix 8
I bought this a month ago and love it! Still learning the features as I go. The Garmin Connect app info. is invaluable! I live in a rural area so it’s like having a personal trainer! Thank you Fenix 8
Originally reviewed on Garmin
August 6, 2025
Great watch
Does everything needed. Does more things than I will ever use. Great for monitoring heart functions.
Originally reviewed on Garmin
August 6, 2025
Great features, battery life needs a lot of work.
Lost my 7pro, so I upgraded to the 8MIP. Happy with the features, but battery life has a long way to go. With most settings turned on I only get around 7-9 day.
Originally reviewed on Garmin
August 3, 2025
Great watch
Size fits well on my wrist and battery life has been amazing. Great for everyday use as well as activity tracking.

Originally reviewed on ExpertVoice.com
August 3, 2025
Awesome product
I bought this watch a month ago. Haven’t fully explored all of it’s features yet, but am loving the ones that I have. On my way to Alaska and looking forward to using the hiking, navigation and kayaking features.
Originally reviewed on Garmin
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Cancer and Reproductive Harm - P65Warnings.ca.gov