The Garmin eTrex 20x is your best bet for a dedicated, outdoor ready hiking GPS. There are more expensive models, and smartphone alternatives, but for a lot of hikers, the eTrex 20x will give you the best bang for the buck. Here's why I recommend it.
The eTrex 20x is a small, outdoor ready mapping GPS unit. You can follow a pre-made track or route, or navigate to a waypoint. Or you can navigate by looking at the loaded maps on the small color screen. It’s waterproof, rugged, and outdoor ready (so unlike most phones, you can drop it without shattering the screen).
If you read the reviews for the eTrex 20x (especially on Amazon), you’ll see that many people give it low stars and complain about the maps. Garmin’s marketing makes it seem like you can start mapping hikes out of the box with this thing, and it’s not true.
Garmin includes a base map, which will basically tell you what city you’re in and what interstate is close to you. It’s pretty worthless, BUT BUT BUT you can get free topographic maps and load them on the unit very easily. No need to buy expensive Garmin maps. And Garmin provides a free program called Basecamp (Windows and Mac) that’s a great tool for planning routes and loading them onto the unit. I use it all the time.
So with the free maps, and Basecamp for planning, the Garmin eTrex 20x is powerful tool. It’s small, rugged, and easily helps you navigate the trails. Whenever someone asks me for an inexpensive GPS recommendation, I tell them to get the eTrex 20x. I carry one myself and use it in addition for my Fenix watch and smartphone (because I’m a freak about having backups).
If that’s enough for you to know, I’d recommend getting the eTrex 20x from REI. You get a member dividend back, can use their frequent member coupons to get an additional discount, and then return it easily if you need to. Otherwise, read on for my in-depth review.
When I was younger I might’ve eschewed the use of something like this, but as I get older, I appreciate knowing exactly where I am at any given time. I wouldn’t hit the trail without it. – REI Reviewer
There are some basic functions that I look for in a hiking GPS, and the eTrex does all of them well. Here’s what it does:
In addition to those basic functions, the eTrex 20x has some bells and whistles that I like.
A hiking GPS is really only as good as the signal it can get, and the eTrex is solid in that department. It picks up a signal very quickly (actually quicker than some of the more expensive units that I tested). In addition to standard GPS signals, it also has WAAS, which can improve accuracy. You can also enable GLONASS support, which is Russia’s version of GPS. Enabling GLONASS allegedly improves your accuracy by up to 20%. I enable GLONASS and WAAS and it works great. If you want to save battery, you can also turn those features off.
I didn’t have scientific way of testing the GPS versus other units, but I did do dozens of real world hike spot checks on the eTrex 20x, Fenix 3, iPhone 7 Plus, and Oregon 700. Every time I checked, the eTrex 20x was within 20 feet or so of all the other positions, which is good. And I confirmed that GLONASS improved accuracy a bit. And just a reminder, unless you’re geocaching, it’s not that crucial to know exactly where you are. I generally use it to see if I’m on the right trail, and that’s generally pretty obvious.
First off, I love that it uses AA batteries. That means you can just carry extra batteries when you need more juice. They can be rechargeable batteries, or the same old AA you can get in any gas station. No need for USB chargers, solar panels, or anything else fancy. Carry some extra AA batteries in your pack and call it a day.
With normal alkaline AA batteries I get about 22-24 hours of batteries depending on my backlight brightness and how much I use it. When I used Lithium batteries I got between 40-50 hours of use. The lower number seemed to be when I was in canyons where it had to work more to lock onto a signal. The 50 hours were in my “normal” hiking with better line-of-sight.
To maximise your battery life, turn off GLONASS, WAAS, and minimize the backlight.
Our eTrex 20x used only one set of AA lithium batteries to complete 93 miles in 9 days on the Wonderland Trail – REI Reviewer
Great if your a hiker of any sorts – easy to use, multifunctional, I like that you can update it and load files on for trips and change them out for other trips, great that you can load hikes from where you never been, nice having peace of mind of not getting lost, batteries last a good long while, not heavy and easily packable – Amazon Reviewer
There are a lot of GPS options, which is a great thing for us hikers. Here’s how the eTrex 20x stacks up to the other GPS options on the market.
You’re smartphone is probably thousands of times more powerful than the eTrex 20x. The screen resolution probably leaves the eTrex 20x in the dust. But phones are only good if they work, and most phones aren’t as rugged as the eTrex 20x.
First, cell phones are notorius for going dead, especially in the backcountry. What typically happens is that you loose a cell signal, then your phone starts constantly searching for a signal, which quickly drains the battery. You can solve this problem by putting the phone in flight mode, but some phones don’t allow the GPS to work in flight mode. So it can get tricky. I typically use my iPhone in offline mode with GaiaGPS in addition to a dedicated GPS unit like the eTrex 20x.
The other issue is the durability of a smartphone. If your phone isn’t waterproof, you need to protect it from moisture (easily solved with a plastic sandwich bag). The bigger issue for me is the screen. Most phones aren’t shatter-proof, and my sweaty hands have dropped a few phones, cracking the screen. I even tried rugged cases like the Otterbox, and still cracked them. The phone doesn’t have to hit the ground with force to crack, it just has to hit at a certain angle or spot and a crack or shatter.
The nice thing about the eTrex 20x is that it gives you the basic, most useful GPS functions in a small, inexpensive package. If you look at the more expensive models from Garmin, etc., they bundle in extra features that aren’t important for most hikers.
For example, take a look at the high end Garmin 750t, another handheld mapping GPS. For about $350 more than the eTrex 20x, you get: a bigger screen (maybe worth it), a camera (which you probably have anyway), topographic maps (which you can get for free), WiFi/Bluetooth connectivity (who cares on the trail), and some other minor features. Now maybe one of these features is important to you for whatever reason, in which case go for it. But if you just want a solid GPS for hikes, you don’t really need all the bells and whistles.
My main GPS device is a Garmin Fenix. I use it for basic navigation checks, and also as a powerful workout tracker (I use it for running, hiking, biking, swimming, etc.). I also use the eTrex 20x. The eTrex 20x has a bigger screen, and is easier read and navigate from. It’s also a fraction of the cost of a GPS watch. If you’re looking for a full featured device that lives on your wrist, the Garmin Fenix is the move. If you want a basic GPS for the trail, go with the eTrex 20x.
These two units are almost identical. The difference is that the eTrex 30x has a built in compass and altimeter, and the eTrex 20x does not. The eTrex 20x uses the GPS and movement to determine your compass heading. If you’re standing still, you won’t get an accurate compass reading. And the eTrex 20x uses GPS map data to determine your altitude, while the 30x actually uses a built in barometric altimeter. If those features are important to you, spend the extra few bucks for the eTrex 30x. Otherwise the units are identical.
There are also eTrex Touch devices that have touch screens. I found the buttons on the eTrex 20x to work better for me than the touch screen, especially when my hands were cold or wet.
I highly recommend ordering your eTrex 20x from REI. You can probably get it for a few dollars cheaper on Amazon, but that comes with a risk. Usually the eTrex 20x is sold through a third party on Amazon, and it’s hard to return or get support on. With REI, there are no hassle returns, you can go to a store and get help using it, and you get the REI member dividend back.
5 star. Works great. Accurate. Great price for value. – Amazon Reviewer
When you first get the eTrex, there’s not much to it, just a unit and a USB cable (it uses a mini-USB connector on the unit). If you want a manual, check out the online version which is easier to read than the miniature version they package with the unit.
Here’s how to get started.
Works great after it’s setup and you actually learn how to use it. – Amazon Reviewer
Not much to say here, aside that it’s pretty simple to use once you get used to the buttons and menu. You can customize things like the menu order and data fields shown. Here’s how it works.
I highly recommend planning your route on your computer before you start. It’s much easier than planning a route on the small screen of the eTrex 20x. I have a whole article on planning your hike here. Once you have your route or track, send it to your device.
If you’re used to a fitness model of the Garmin, the eTrex 20x works differently. On a fitness model like a Fenix, you hit start, and it tracks your activity like a stopwatch until you hit stop. The eTrex 20x works more like a car odometer. When you want to start a new hike, you reset the trip computer and it starts recording while the unit is on. When you’re done, you save the track and reset the computer.
In Garmin Basecamp you can create routes, which are similar to turn by turn directions on an automotive GPS. You simply create it, send it to the eTrex 20x, and then navigate using the route. When there’s a turn or change in the route, the unit will wake and chime to alert you. I wouldn’t rely on this as your sole way to navigate, but it’s handy.
You can also download GPX tracks (like the ones from this website) and view them on your device. Send the track to the device in Basecamp, and then simply bring it up on the device. If you’re on the purple line, you’re on the track. It’s handy when you come to an intersection and need to figure out which way to turn. And (obviously) nice if you’re navigating off trail as well.
You can set a proximity alarm for a waypoint. When you get close to the waypoint, the unit will wake and chime. This is helpful for important locations on the trail, for example, and unmarked turn.
This is a basic function on most GPS units, and the eTrex 20x supports it too. You can mark a waypoint where you are, or use the joystick to scroll around the map to mark a waypoint. You can then navigate to any waypoint, with the unit’s compass pointing you in the right direction.
eTrex 20x Prices & Reviews at REI
I have used by eTrex 20x for two hiking/hunting/fishing seasons. It has proved to be a very rugged and reliable GPS. I bought it to geocache and it also proved to be very accurate. For off-trail use in heavy PNW forest, it was indispensable. Got me back to the vehicle every time. – Amazon Reviewer