Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.
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Currently running with a Garmin Fenix 6S, and have had it for over 5 years now. It does everything (and more than) I need. Works great and holds a charge so I don’t see myself getting a new watch for a while still. My first two I used for 3-4 years each, first one had charging issues and eventually died (forerunner 210), second one (forerunner 220) I wanted to upgrade to something with HR and more features. They brought out a newer model with HR capabilities a month and a half after I got my second one. 🥲 I couldn’t justify upgrading so quickly and kept it for a few years.
I actually use an arm strap heart rate monitor (COROS) opposed to a chest strap and find it to be very accurate actually…can see a big difference in the consistency of my heart rate changing between watch alone (Garmin Forerunner 215) and having the strap. I believe there is a way to set up alerts if you are outside a heart rate zone for options such as HIIT…I know you can when you select “Running” as an option
Seems like I am replacing my watch every 2-3 years. Battery is always the reason. Have gone with the base models of the garmin forerunner (35,45,55) then finally upgraded to the 200 series most recently.
If they won't want to charge it daily, a Garmin is a great option. The next question is whether they will go through and select specific activities when they do them (hike, golf, cycling, etc). If so, then go to the Garmin website and confirm which model has what you want. If not, then it really doesn't matter as they'll be using the basic background activity tracking features. The Forerunners in the 200 series are good values with most activities, but maybe not golf.
You're probably going to get each brand's fans telling you theirs is the best. The Garmin Forerunner 200- or 500-series will give you great coverage of running and cycling. I'm less sure about swimming. I know people do it but I'm not much of a swimmer. I think there are some tricks to setting it up well. It should give you ok coverage of basketball. You'll see how it impacts your overall fitness picture. I found the weightlifting module unusable but people do use it. Must-have accessory - an external heart rate sensor. I think there's a right thing for swimming in particular. It should work fine for the other stuff. The handlebars adapter. If maps are important to you, within Garmin you really need two devices.
Lots of options. Check out the Venu series, Vivofit, and Vivoactive. IMO the value-added aspects of the Forerunner are around running and other aerobic endurance sports. Are those relevant to you?
Forerunner can be a great alternative to Fenix if you're price conscious. Or just last generation Fenix. Do you care about maps?
Forerunner does that stuff too. In general, higher-end Garmins add, they don't take away. Are you serious about any of your sports? Like planning seasons, building for events, that kind of thing?
Changed my mind... I think without an explicit indoor rowing activity profile and VO2max, the extra analysis stuff on the Forerunner won't really work. Not sure if any of the watches have that. I know there are some accepted equations to estimate that stuff, though I think you'd also need a reasonably accurate power meter on your rowing machine. So yeah, Venu or whatever is fine.
My opinion, go with the Forerunner. Check out all the chatter from people moving on from their Apple Watches - I get that some of the newer ones have much better support for running but you say you have an older one. And you're not going to want to carry your phone either. How much running have you done up to now?
i second that. wrist HR with F8 is also faulty for me like 30% of the times, could be because of a wrist or a strap. But i did not see any with F8 improvement compared to F6 or older forerunners
Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.

Garmin
Forerunner 955 Series
Best value, clear MIP screen; limited smartwatch features.

Garmin
Fenix 7 Series
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Garmin
Instinct 2 Series
Rugged, solar multi-week battery; bulky, small screen readability issues.

Garmin
Enduro 3
Multi-week solar battery, lightweight; but bulky form factor.

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