Key Takeaways
- A GPS watch will run out of charge before your trail does. Standard mode gets 5 to 14 days. Switch on tracking and that drops to 15 to 40 hours: nowhere near enough for a dependable watch for thru-hiking with no GPS anxiety attached.
- A power bank moves the problem. It doesn't solve it. You're managing a second battery instead of one, and it can add 150 to 400g to your pack.
- A backup analogue watch needs no charging cable, ever. Nothing to forget in the last town, nothing to run flat halfway through a section.
- This isn't an argument against GPS watches. It's an argument for carrying something that still tells you the time when the GPS watch can't.
- Tritium illumination means you can read the time at 4am without waking your tent. No screen, no button, no torch.
- The Hawk is the lighter choice for this job. Built on a reinforced polycarbonate case rather than steel. The MX10 is the classic steel alternative if the weight suits you better.
GPS Battery Failure: The Real Problem on a Thru-Hike
A GPS watch is probably already in your kit. This isn't a case for replacing it. It's a case for the one thing it can't do reliably: tell you the time two weeks in. The charging cable's on the kitchen table at home. The power bank's run dry.
That's GPS battery failure in practice. Most GPS watches rate 5 to 14 days in standard mode. Switch on full tracking and that drops to 15 to 40 hours. The usual fix is a power bank. It works, but it just moves the problem. A second battery to manage. 150 to 400g of extra weight. A cable that's easy enough to leave behind in the last town.
We build our watches to skip that problem entirely. A no charging hiking watch has nothing to forget. Nothing to ration. Nothing that runs flat on day fourteen. That's what a thru-hiking watch with no GPS anxiety attached actually looks like.
Why a Backup Timepiece That Never Needs Charging Matters
Carrying a backup watch isn't new on the long trails. Simple mechanical or quartz watches have travelled alongside GPS devices on the Appalachian Trail, the Pacific Crest Trail and the Continental Divide Trail for years. Gear lists and hiker memoirs mention them often enough.
The same logic holds whether you're carrying an Appalachian Trail watch on the AT, a Pacific Crest Trail watch through California and Oregon, or a Pennine Way watch and West Highland Way watch on home ground. Call it a watch for expedition trekking or a backup timepiece. Either way, it does one job, and we'd rather it did that job well than several jobs adequately.
Why thru-hikers carry a backup analogue watch:
- No charging, so no cable to forget and no percentage to watch
- No reliance on signal, satellites or a paired phone
- Tritium illumination stays readable in complete darkness with no screen to activate
- Lighter on the wrist than the power bank it can replace
- Keeps working even if you left something behind in the last town
The role is narrow on purpose. When the primary GPS device is dead, charging, or dropped off at a town for repair, the backup tells the time. Nothing more. On a trail running to thousands of miles, that redundancy in something as basic as timekeeping is a reasonable thing to want.
What Time Actually Needs to Do on a Long Trail
Time on a thru-hike does a handful of jobs. How much daylight's left, so you know whether to push for the next shelter or make camp where you are. Getting to the post office or outfitter before it shuts. Staying inside a timed permit window on sections of the PCT, or at certain UK mountain huts. Camp pitched, stove going, before dark at the end of a 20-mile day.
None of that needs GPS. Just an accurate, readable time source that works, full stop. That's a different requirement to a long battery life hiking watch running on a lithium GPS chip. It's exactly why we build ours around a small quartz movement on a cell that lasts years.
The Weight Trade-off: Backup Watch vs Power Bank
Thru-hikers count grams, so a backup watch has to earn its place. Here's the trade worth making. A power bank exists purely to keep a GPS watch charged. An ultralight watch built for zero charging replaces both that habit and the power bank itself.
The backup watch alone weighs less than the power bank alone. That's not adding one more device to the kit list. It's removing two and adding one lighter one, which is the trade we designed for.
Reading the Time in the Dark Without Waking Anyone
Pre-dawn starts are standard on a thru-hike, whether that's beating the summer heat or making the most of short autumn daylight. Checking the time in a shared shelter at 4am without switching anything on matters. It doesn't wake your tent partner. Doesn't wreck your own dark adaptation. Doesn't mean fumbling for a device.
A tritium hiking watch solves this without a single button press. Tritium illumination stays continuously readable in total darkness. The tubes are rated to 20 years, so they won't dim noticeably over the course of one thru-hike, let alone several.
British Long-Distance Trails: The Same Problem, Closer to Home
You don't need the Rockies or the Sierra Nevada for this to matter. Britain has its own multi-day trails where the nearest plug socket is just as far away, and the same GPS battery failure shows up in exactly the same way.
England and Wales: The Pennine Way and South West Coast Path
The Pennine Way runs around 268 miles from the Peak District up through the Yorkshire Dales and Northumberland to the Scottish border, usually walked over two to three weeks. A GPS watch on standard mode won't make it from one end to the other without a recharge somewhere in between, and recharge points aren't exactly common on the Northumberland moors.
The South West Coast Path is longer again: 630 miles of Cornwall, Devon, Dorset and Somerset coastline, the longest waymarked trail in Britain. Most people walk sections of it rather than the whole route in one go, but for anyone attempting a serious stretch, the charging problem is identical to a US thru-hike. No power, patchy signal in places, and days between resupply.
Scotland: The West Highland Way and Cape Wrath Trail
The West Highland Way, 96 miles from Milngavie to Fort William, is usually finished in about a week: short enough that a GPS watch's battery might just about survive it. The Cape Wrath Trail is a different proposition entirely. An unofficial, unmarked route of around 200 miles through the Scottish Highlands, with some of the longest gaps between resupply anywhere in Britain.
We'd back a backup watch on the Cape Wrath Trail before almost anywhere else on this list. It's remote, the weather turns fast, and a dead GPS watch there is a genuinely bigger problem than on a well-serviced trail further south.
What This Watch Won't Do, and Why That's Fine
Worth saying plainly, rather than finding out on trail:
- It doesn't navigate. A GPS watch can show your position on a map. This one can't. If you rely on a GPS device for route-finding, keep carrying it.
- It doesn't track mileage. No step counting, no distance or pace data. That comes from your guidebook, your GPS device or your phone.
- No altimeter. No elevation readout. Your topo map or GPS handles that.
- No barometer. No weather prediction built in.
- It doesn't connect to your phone. No notifications, no app syncing.
- No calorie counting or heart rate monitoring.
None of that is a function a backup timepiece needs. As a backup watch for backpacking, its job is narrow by design: tell the time reliably for the length of the trail. For that job, a watch with no charging dependency beats any GPS watch, simply because there's nothing to charge.
This watch belongs in a kit alongside your GPS device, not instead of it. We built it as insurance against the one failure mode that device carries, not a replacement for it. Carry both and you've got redundancy on something as basic as knowing the time. Carry only the GPS watch and that's a single point of failure on your wrist.
For a wider look at choosing a watch for outdoor and tactical use in general, our military and adventure watch buying guide covers that ground. This piece stays narrower: the thru-hiking backup problem specifically.
Recommended NITE Watches for Long Trails
Two watches in the range suit this role. Both are zero maintenance watches in the sense that counts here: no charging port, nothing to service before a trail, nothing to remember. Which one you pick comes down to whether shaving weight or a solid steel watch on your wrist wins out for you.
Hawk: The Lighter Choice for Long Trails
We build the Hawk around a reinforced polycarbonate case rather than steel, which keeps it lighter on the wrist than our steel models. On a trail where every gram in the pack gets weighed up, that's worth having.
Hawk Nightfall: T100 tritium, 200m water resistance.
It runs T100 tritium, the brighter of our two tritium options, useful for pre-dawn starts in a dim shelter. The 200m water resistance isn't a requirement for hiking, but it's no disadvantage crossing streams or caught in a downpour either.
The Ronda 715Li movement inside runs on a lithium cell rated for roughly a decade, with a jumping second hand giving an early warning when it's due for a change. That's a battery you check on once every few years, not something you're thinking about on trail.
Hawk Canyon: reinforced polycarbonate case.
MX10: The Classic Steel Alternative
The MX10 was our original field watch, first supplied to UK Special Forces and built on 316L steel rather than polycarbonate. It's heavier than the Hawk, but if you'd rather have the steel feel on your wrist and don't mind the extra weight, it does exactly the same zero-charging job.
MX10 Forest: push crown, 100m water resistance.
A rubber or webbing strap suits either watch better than steel for trail use. It handles sweat, dirt and stream crossings without fuss, and it's straightforward to swap if it wears out mid-trail. Either watch needs no charging and very little upkeep beyond that.
If the battery anxiety above sounds familiar from a previous trail, the build quality behind either watch is worth a look before you decide.
Browse the full Hawk range or the MX10 collection to find the colourway that suits your kit.
FAQ
Does a NITE watch replace my GPS device on a thru-hike? No. It has no navigation, mapping or tracking functions. It's a backup timepiece for when your GPS device is dead, charging or unavailable, not a substitute for it.
What's the best watch for multi-day trek use, if I'm already carrying a GPS device? One with no charging dependency at all. The point of a backup isn't extra features, it's a watch that still works after two weeks without a socket.
How long does NITE's tritium illumination last? Up to 20 years without charging or fading overnight, since the glow is continuous rather than something you top up.
What's the difference between T25 and T100 tritium? T25 gives a subtler, more discreet glow; T100, used in the Hawk, is the brighter option.
How long does the battery last in a NITE quartz watch? The Hawk's Ronda 715Li movement is rated for roughly a decade before it needs replacing, with a jumping second hand as an early warning.
Can I use a NITE watch to navigate on trail? No. There's no compass, altimeter or barometer function. Navigation needs a dedicated GPS device or a map and compass.
