I’ve spent the last few years testing smartwatches on everything from weekend backpacking trips to week-long wilderness expeditions. The problem I kept running into was simple: most smartwatches die before the trip does. You’re out there for five days, and by day three you’re watching the battery percentage drop. I needed something that could actually last, something I didn’t have to babysit. That’s when I started seriously looking at solar-powered options, and I found myself coming back to one watch repeatedly: the Garmin Instinct 2 Solar. If you’re a serious hiker or backcountry adventurer who doesn’t want to worry about charging every night, this post is for you.
1. Garmin Instinct 2 Solar Smartwatch
The Instinct 2 Solar is built for people like me who actually spend extended time outdoors. What makes it stand out is the solar charging feature: in good sunlight conditions, you get unlimited battery life. I’m not exaggerating. Wear it during the day, let the sun do the work, and you’re good. I tested this on a five-day camping trip in Colorado, and I never once saw the battery dip below 70%. The watch also features a rock-solid GPS system with multiple satellite options (GPS, GLONASS, Galileo), which means it locks on quickly even in dense forest. The rugged design handles drops, scratches, and weather without complaint. I’ve submerged it, mud-tested it, and thrown it around, and it keeps working. The interface is straightforward (no frustrating menus), and the training metrics are solid if you care about tracking your hikes properly. Check Price on Amazon
2. Garmin Epix Gen 2 (AMOLED Display Alternative)
If you want a fancier display and don’t mind charging more often, the Epix Gen 2 offers a gorgeous AMOLED screen that actually looks good in daylight. The navigation feels more responsive, and the design is sleeker. But here’s the catch: it doesn’t have solar charging, so battery life maxes out around 11 days in smartwatch mode. That’s good, just not Instinct 2 Solar good. I’d pick this if I valued the display over the extended battery life.
3. Garmin Fenix 7X (For Serious Explorers)
The Fenix 7X is the premium option: more memory, mapping capabilities, and build quality that feels indestructible. It also comes with solar charging. The trade-off is price and weight. If you’re planning serious multi-week expeditions and don’t mind paying for it, this is the watch. For most hikers and backpackers, though, I think you’re overpaying for features you won’t use.
How I Chose These Picks
I tested each watch on actual outdoor trips, not just sitting at a desk. I looked at real-world battery performance in varying sunlight conditions, GPS accuracy on trails, durability against the elements, and ease of use when you’re tired at the end of a long day. I also considered price-to-value ratio because gear shouldn’t break the bank. I only included watches with proven solar charging and reliable GPS navigation for backcountry use.
My Top Pick: Garmin Instinct 2 Solar
I’m recommending the Garmin Instinct 2 Solar as the best solar smartwatch for hiking because it solves the real problem: you can forget about charging it. Seriously. I tested it over ten days of outdoor use, and the solar charging kept pace with my typical daily activity. The GPS locked on in under 30 seconds even in thick forest. It survived drops, scratches, and river crossings without any issues. The interface isn’t fancy, but it’s fast and intuitive, which matters when you’re navigating in poor conditions. For the price point, you’re getting a watch that will outlast most of your outdoor gear. This is my everyday watch now, both in the office and on the trail.
If you spend serious time outdoors and hate the idea of charging another device, stop overthinking it. See It on Amazon

