My couple weeks of testing multiple watches during upgrade decisions from FR935. Maybe it will help someone. :-) Posting it in 945 forum for a reason written at the end of this post.
Polar Vantage
Size and weight is similar to FR9xx maybe a touch heavier but I didn’t notice a difference wearing it on my wrist. The strap however which came with Vantage was an absolute joke. Sturdy, rough and very unpleasant to wear. Garmin’s stock strap in FR9xx series is miles ahead. Sure, one can replace it but top of the line watches should come with a solid strap.
oHR - resting, all-day readings were OK. oHR during a couple of steady runs on my smaller wrist was all over the place. Polar reading 30-40 bpm higher, constantly locking to cadence. I tried both wrists, wearing on the top and the bottom of my wrist to no avail. oHR on steady runs with FR935 were within couple of bpm to chest strap.
GPS track in the backcountry and in the city similar to 935. Some sections spot on, some sections way off. Nothing to write home about.
Software on the watches. Customization of sport profiles is almost as good as on Garmin’s. Yet it can only be done in Polar Flow which has its pros and cons. The buttons are of very poor build quality. There is almost no click feeling. Button’s height is quite low not much above the shell. That makes navigation during a run quite difficult. Workout pause screen is another roadblock. When you hit the pause, you can’t check your stats. All you can see is the pause screen. No audio feedback for laps only vibration. You almost can’t feel that vibration so if you want to check lap stats you will likely miss 9 out of 10.
All-day HR tracking shows just actual HR and min, max values for a day. Also all the widgets are preset and can’t be removed or reordered.
I had a quick look on Vantage V as suggested by RemiM
- Better buttons than Vantage M
- I'm using Stryd and Polar don't use pace, distance from Stryd if GNSS is enabled. It seems like software limitation but currently there are no plans for a change.
- Only Bluetooth, no ANT+
- No Topo maps
- No on-board music
Both Vantage V and 945 are at similar price here and both with 2 years warranty. For my usage Vantage V vs. FR945. I would get the same performance at the same price but without ANT+, Topo Maps, Music storage and Contactless Payments. None of these features is a dealbreaker for me expect Topo maps. Those are quite useful for trail race navigation on a course with poor course signs. Should the Vantage V be priced better in our market it would be a big contenter for FR945 in my decision process for sure.
Suunto 9
When I put them on the first time I realized what’s the definition of big watches. These are really big and noticeably heavier. I see why Suunto is not much into all-day activity tracking or sleep tracking development. There is no chance I would put these on voluntarily for sleep tracking. :-)
Widgets are preset and can’t be removed or reordered. Customization here is very limited.
Customization of activity profile is also close to zero. Suunto has like 100 predefined profiles (16 for running) which can’t be modified. If you want specific information on the watches and your needs don’t fit into those predefined (very likely) you have to create your own profile. However custom profiles are limited to only 4 screens and that’s 3 custom screens + 1 occupied by navigation screen. Software is a huge limitation to this "top of the range" watches. Pause screen is better than on Polar, at least you can see some summary stats (time, distance, battery level, ...) yet you can’t look at your preconfigured custom screens.
Fenix 6x
Watches are of similar size of Suunto 9 but fits better on my wrist. 93g is noticeable jump from 50g of FR9xx. I could feel the difference in everyday use and during run workouts. Maybe it's just me not be accustomed to "bigger" watches. This unit had perfect buttons, clicky not sticky or mushy. Perfect. Larger screen is nice however you won’t get more map on the screen compared to FR945. That’s a bit disappointing. Map is probably the only screen where the larger display size matters for me. I don’t need 8 fields on single screen neither do I need larger font. The screen font on 945 is perfectly readable and actually a big improvement to 935. Data fields, font and screen ergonomics far ahead of Suunto and Polar.
Fenix 6 Pro
After I realize F6x is too big and gave Fenix series one more shot with F6 Pro. Whilst only 10g lighter the actual feel is closer to FR945 than F6x on my wrist. Also its less bulky. Screen size, font is bigger than on FR945 but not a selling point for me as data readability and visibility is the same on both for me. FR9xx fit was a bit better for my wrist and hold rock solid during my trail mountain running, flat run sessions. Fenix 6 had to be really tight or it would just wobble on my wrist too much. I could wear FR9xx strap looser without these problems. If one cares, the Fenixes are prettier for casual wearing. I could wear Fenixes on a hike or mountain trip. If you don't care about the looks and your focus is on sports tracking, performance the 945 nails it.
I didn’t want to go for straight upgrade 935 to 945. Took my time and explored other options. However it seems that there was a good reason why I picked up 935 over 2 years ago and those reasons still stands. My training composition and gear requirement didn’t change that much. I’ll keep the FR945 as a daily driver for an upcoming seasons.