Customer reviews from Garmin
Garmin - Descent Mk3i GPS Dive Smartwatch 51 mm Fiber-reinforced polymer - Silver and Black PVD Titanium with Black/Gray Band - (2026)
Average customer rating
4.6
(151 Reviews)
Rating breakdown 151 reviews
5 Stars
119
4 Stars
17
3 Stars
6
2 Stars
5
1 Star
4
Customer Reviews for Garmin - Descent Mk3i GPS Dive Smartwatch 51 mm Fiber-reinforced polymer - Silver and Black PVD Titanium with Black/Gray Band - (2026)
Customer Rating
5
Best battery life I've ever had on a smartwatch!!!
on October 31, 2025
Posted by: TheOceanAstronaut
This thing just goes and goes! 25 days of battery life on a full charge. Gone are those days where I used to have to take off my watch every 3 to 4 days to charge it up. The greatest thing is it actually is a smartwatch and not just a dive computer. It shows messages can pay by tap, and a whole host of workout and physical condition information. Government is the best company! Now they just need to make a quality smartphone!
Written by a customer while visiting Garmin
Customer Rating
5
Couldn’t live without my MK3i
on October 30, 2025
Posted by: Lostwon
I only have great things to say about my MK3i. The watch and Garmin ecosystem have fundamentally awoke my fitness and health awareness. I appreciate the direction we are heading with wearable tech. One thing that I can attest to without any doubt is the absolute quality of the glass. I beat this watch up daily and have yet to scratch or crack the glass. The raised bezel does its job exceptionally well.
Written by a customer while visiting Garmin
Customer Rating
5
Best sports watch for divers ever!
on October 27, 2025
Posted by: Cwhig
I bought this over a months ago and I enjoy ever single day! So many things you can use it for besides diving, especially if you work out or doing anything active. The charge on the battery is insane it lasts forever. I have a teric and a perdix which are great dive computers but that’s all they are. I use this garmin for biking, swimming , working out and everything I try to do. Totally love it.
Written by a customer while visiting Garmin
Customer Rating
5
Has more features still learning what it can do.
on October 20, 2025
Posted by: dddjr58
bought it for diving it is great and not complicated have many others this one is the one
Written by a customer while visiting Garmin
Customer Rating
5
Super Excited
on October 19, 2025
Posted by: Chelsea.Dives
I have had all previous versions of the Descent MK and I have loved them! So was super keen to grab the MK3i! Super keen to take it for a spin off Straddie and also do the Noosa Tri in 2 weeks!
Husband also gets a new computer in grabbing my MK2i now… lucky man
Husband also gets a new computer in grabbing my MK2i now… lucky man
Written by a customer while visiting Garmin
Customer Rating
2
Nice watch
on October 14, 2025
Posted by: bodiej78
I enjoy the watch, but the transmitter does not stay connected. I keep losing my air pressure reading
Response from GarminBy Garmin, Care, October 14, 2025
Thank you so much for reaching out with this concern. We'd love to assist with this connection issue - please give us a call at 800-800-1020 so we can troubleshoot this with you and help find a solution.
*KC
*KC
Written by a customer while visiting Garmin
Customer Rating
5
First Smart-Watch
on October 6, 2025
Posted by: Beowulf-Murderface
I got the 51mm, and it is a chonk (in a good way). The titanium band is very nice, but even adjusted to smallest setting, is a touch loose for me (8” wrists), so consider that. I’ve done about 8 dives in murky water, but only down about 30 feet. The sceen is easy to read, and all the features seem very useful, even for a noob like me. It does a strange thing where it’ll go into “Red-Shift” mode rather randomly. And…..the flashlight is very handy! I use that all the time. Not cheap, but I have no regrets.
Written by a customer while visiting Garmin
Customer Rating
5
Great Scuba Diving Watch/Computer
on October 2, 2025
Posted by: PONDWATER
What I like most about this watch is that it never loses communication with its’ transceiver, unlike other air-integrated dive watches I’ve owned; maybe because it’s range is 10 meters instead of just 1 meter. I also like that it automatically goes into dive mode with no required action by me except to descend below 4 feet. I also like that with the Garmin Descent S1 Buoy, I am able to find my way back to the dive boat (Find My Buoy) out to 100 meters, which was something I’ve been looking for over the 40 years that I’ve been diving.
Written by a customer while visiting Garmin