120 Hours.
What That
Really Means.
Every long-distance rider has had the same 2am moment on a brevet: watching a bike computer's battery percentage drop faster than the kilometres are ticking over. The COROS DURA's headline number — 120 hours of GPS tracking, extended further by a built-in solar panel — sounds like a spec-sheet exaggeration. It isn't. Here's what it actually changes for riders doing BRM series events, multi-day tours, or the Tour of Nilgiris.
Two Battery
Figures, One
Real Answer
COROS quotes two headline battery figures for the DURA, and the difference between them matters more than either number alone: up to 120 hours of tracking time using single-band (standard) GPS, or roughly 70 hours if you switch on dual-frequency GPS positioning for tighter accuracy in tree cover or urban canyons. On top of either figure, the DURA's built-in solar lens adds real ride time back — COROS's own claim is up to two extra hours of charge for every hour spent riding in direct sunlight, which is not a token gesture given how much direct, high-UV sun a typical Indian day ride or brevet actually sees.
Put together, that's a device that can plausibly run an entire multi-day stage event, or a 200-400km single-sitting brevet, without ever seeing a wall charger. That is a genuinely different category of usage than the 15-20 hour GPS battery life most bike computers in this price range offer, and it changes how you plan a long ride — you stop treating battery percentage as a countdown clock you have to manage.
The screen matters as much as the battery
The DURA runs a 2.7-inch colour touchscreen, and the panel technology is as relevant to real-world battery life as the cell itself — a transflective, always-on display draws far less power than a conventional backlit screen because it reflects ambient light instead of fighting it, and it's genuinely more legible in harsh midday sun rather than less. Basic mapping is on board, with support for Strava, Ride with GPS, and Komoot for route following, though it's fair to say the navigation experience is functional rather than best-in-class — more on that below.
Brevets, Touring,
And The Indian
Riding Calendar
India's long-distance riding calendar is built around exactly the kind of riding that exposes a normal bike computer's weaknesses. Randonneuring's BRM series runs timed rides from 200km up to 1200km, often through the night, with no guaranteed access to mains power at controls. The Tour of Nilgiris and similar multi-day stage events mean six to eight consecutive days of riding and recharging on the road, frequently from a shared power strip in a dorm room with twenty other riders' devices plugged in ahead of yours. In both scenarios, a device that can run two, three, or more days without needing a plug isn't a luxury — it removes a genuine failure point from the ride.
At roughly ₹27,990 in India (around $249 at global launch pricing), the DURA also undercuts the nearest comparable solar computer on the market by a wide margin — Garmin's solar-equipped Edge 1040, for comparison, claims a fraction of the DURA's battery life at close to three times the price. That gap is the actual news here, more than the solar gimmick on its own.
"The number that matters isn't 120 hours in a lab. It's not thinking about your battery at all on day four of a stage race."
— Do Good CoWhat The
DURA Doesn't
Do
None of this makes the DURA a Garmin Edge 1040 or Wahoo ELEMNT Roam replacement in every respect. Reviewers who've put real miles on it are consistent on two points: turn-by-turn navigation and route-following are usable but basic rather than polished, and there's no live tracking feature for riders who want family or ride organisers to follow their dot in real time on a phone. If detailed off-route rerouting or live tracking during an event is a hard requirement for you, that's a genuine reason to look elsewhere. If your priority is a device that simply keeps recording and doesn't die on a long ride, the trade-off is a very easy one to accept.
Not Ideal For
- Riders who lean heavily on detailed turn-by-turn rerouting mid-ride
- Anyone who wants live GPS tracking shared to family or organisers in real time
- Short daily commutes where 120-hour battery life solves nothing you're short on
Built For
- BRM brevets and randonneuring where charging access is unpredictable
- Multi-day stage events and self-supported touring
- Riders who want a screen that stays legible, not washed out, in direct Indian sun
- Anyone tired of babysitting a battery percentage on long rides
The DURA isn't trying to out-feature a premium computer twice its price — it's solving one specific, very real problem for long-distance riders, and it solves it better than almost anything else on the market at its price point. That's a narrower pitch than "best bike computer," but it's an honest one.
We carry the COROS DURA — as always with newer COROS units, current stock varies week to week, so message us to check what's actually on the shelf before you plan a purchase around it.
Battery life, solar charging, screen and price specs per BikeRadar's COROS DURA news coverage and review, PezCycling News' COROS DURA review, and bikepacking.com's COROS DURA review.