Customer reviews from Garmin
Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
Average customer rating
3.3
(223 Reviews)
Rating breakdown 223 reviews
5 Stars
66
4 Stars
48
3 Stars
38
2 Stars
29
1 Star
42
Customer Reviews for Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
Customer Rating
3
Good - But Not Great
on August 13, 2025
Posted by: Cervelo
Simple setup, easy-to-wear, with excellent analytics. Battery life not up to specs, intermittent syncing to my dashboard. Overall not bad, but not up to normal Garmin standards.
Written by a customer while visiting Garmin
Customer Rating
2
Very inaccurate
on August 13, 2025
Posted by: Freddy B
Possibly with updates this would be a good reliable device. For some reason gamins devices struggle when it comes to sleeping. After 2 weeks of use, I can confidently say that it's not accurate. It moves around a lot, it says I've only gotton 2 hrs of sleep on nights I know got 7 hrs of sleep. If I followed Garmin's suggestions, I would basically be unproductive ever since I started using it. Hopefully they can iron out these issues.
Written by a customer while visiting Garmin
Customer Rating
2
So so.
on August 13, 2025
Posted by: Nvfro
When it works, it works great. Keeps disconnecting and very hard to tell if it’s on or off. Very hard to get it into pairing mode, plug it in as instructed and do not get flashing purple light. At this point it’s a waste of money.
Written by a customer while visiting Garmin
Customer Rating
1
Can't Keep a Charge for More than 2 Days
on August 12, 2025
Posted by: parexc
Out of 12 days of ownership, 6 days show no reports.
Presume the Battery went dead.
I am going to pursue a return on this product.
Presume the Battery went dead.
I am going to pursue a return on this product.
Written by a customer while visiting Garmin
Customer Rating
3
Marginally accurate
on August 12, 2025
Posted by: Larry Nanni
I've been using the sleep monitor for 2 weeks now. Initially it couldn't determine when I fell asleep or woke. That has gotten better however the pulse oxygen levels are still very suspect as they record low readings in the seventies. I think I'd be in organ failure at those levels.
Written by a customer while visiting Garmin
Customer Rating
4
when it stays on it's great
on August 12, 2025
Posted by: GurkM
Overall it's a very good tracker. My only issue is sometimes it appears to turn itself off during the night and you get no sleep data. When it does stay on the info is very good.
Written by a customer while visiting Garmin
Customer Rating
1
Sync Problems
on August 12, 2025
Posted by: guntcd
I can't get it to syn with my iPhone, so it is basically useless.
Written by a customer while visiting Garmin
Customer Rating
5
Love it
on August 11, 2025
Posted by: Ted3
I purchased this to see how I am sleeping. It is allowing to see what is going on and when.
Love using it
Love using it
Written by a customer while visiting Garmin