Garmin Enduro 2 Review: Body Battery, Energy & Battery Life

Gear · Published 3/14/2024 ·

What if someone could check exactly how much energy you’ve got left in the tank right now? What if you could know in advance how much stamina you’ll have to get through the day? And finally… what if you could understand why the day after drinking is always such a struggle? Knowing all that turns out to be a huge help when you’re planning your day or setting up a workout schedule.

This is what my watch suggested after crunching together today’s fitness level and last night’s sleep. It tells me I can run for 27 minutes at a 7:00 pace. For my body, that’s actually a really solid place to be. One of the things the Garmin Enduro 2 does is monitor your body around the clock — tracking heart rate and blood oxygen 24/7 — and then offer you all kinds of suggestions. Today’s recommendation is one of them.

Here’s my physical status from the same day, checked through the Garmin Connect app. Since I hadn’t worked out in ages, my training readiness was low… in other words, it was basically saying “you haven’t been exercising, have you?” My VO2 Max has dropped to 44… back when I was training regularly, it would climb to 47–48. Heart rate changes from moment to moment, so the number in the app doesn’t really mean much.

Over the past 12 weeks, my activity hasn’t been great.

Body Battery — it shows up as “Energy” on the watch face. This number factors in last night’s sleep, how much I tossed and turned, how much deep sleep I got, and so on, monitoring my body through the night to give an approximation of how much energy I’ve actually recovered. On a really good day, or a day I sleep in until 10 a.m., it fills all the way up to 100, while a day I drink a lot before bed only gets me back to 30 or 40. I can’t speak to everything, but the fact that it catches how my recovery slows down after a night of drinking is exactly why I trust it so much. ^^

Here’s the trend over four weeks. There are quite a few days that start out below 50, and most of those are logged as days right after I’d been drinking. The reason my recovery was slow wasn’t the exercise — it was the alcohol ^^;; When you work out often and consistently, your recovery speeds up even more. That part genuinely amazed me. Seeing the data lay out so plainly why you should exercise — accuracy aside — really makes you want to get moving more.

Most of the time when I start a workout, I keep it simple: I pick the activity on the Garmin on my wrist and fire it up right away. I don’t sit around waiting for the GPS to lock on first. That’s the machine’s job to sort out…

I’m honestly not sure anymore whether the Apple Watch does something similar these days. But for me, even just Garmin’s core features are more than enough, and I’m very happy using it.

The battery shows about 24 days on a full 100% charge. Even if battery performance drops below 80%, that still works out to more than 16 days by my math, so even with a pattern of working out and using it frequently on weekdays, I can get by charging just once a week.

If it ever gets to the point where I’m charging more than once a week, that’s when I’ll plan to swap the battery or send it in for a refurb.

That’s been my look at the Garmin Enduro 2 as a workout assistant.

Thanks for reading.

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