Turn-by-turn routing is what separates a computer from a speedometer
The gap between a head unit at 70 € and one at 300 € is almost entirely on-device mapping: the cheaper units record a track and follow a breadcrumb line, while the more expensive ones carry routable maps and give turn-by-turn directions with street names, which is the difference between knowing you are off course and being told where to turn. We compare routing capability, the battery life each manufacturer states in hours, screen size and whether input is touch or button, and which sensor protocols pair.
2.8" color · GPX routing · ANT+, BLE, WiFi · IPX7 · 15–25 h
A 2.8-inch color GPS computer with GPX route import and turn instructions, ANT+, Bluetooth and WiFi, an IPX7 rating and 15 to 25 hours of stated battery life.
Best for: A first mapping computer, for riders who plan routes on a phone or computer and follow them on the bike.
≈ $60
3.5" touch · 50 h battery · offline Europe map · ANT+/BLE
The longest-running computer here by a wide margin — fifty hours stated — with a 3.5-inch touchscreen, offline European maps and turn-by-turn navigation.
Best for: Multi-day touring and long events where charging is inconvenient and the map has to work offline.
3" touch · preloaded Europe map · e-bike routing · 16 h
The best-selling GPS computer in this hub: a 3-inch touchscreen with a preloaded Europe map, e-bike-aware routing and up to 16 hours of battery.
Best for: Touring and general riding where finding a route matters more than analyzing a training file.
≈ $260
2.4" color touch · free world maps · WiFi + Bluetooth
A touchscreen computer with free downloadable world maps and WiFi upload, using three buttons alongside a 2.4-inch color touch display.
Best for: Riders who want on-device maps and touch operation without moving to the premium brands.
≈ $100
On-device turn-by-turn · automatic route sync · LED indicators
A computer built around automatic synchronization: routes download from connected accounts on their own, workouts upload the same way, and LEDs signal turns and notifications.
Best for: Riders already planning routes in Komoot or Ride with GPS who want them to appear on the bike by themselves.
≈ $325
Screen size decides how readable a map is while riding. On a long ride in unfamiliar terrain, it is the single most decisive characteristic.
Stated battery life falls sharply with mapping and backlighting. A large reserve is what lets you stop thinking about it.
A small screen is enough to show speed, distance and cadence, which are the figures actually looked at while riding.
It assumes minimal use, with no navigation and no backlight. With mapping active, expect markedly less.
To discover a route, yes. To follow a route prepared in advance, a simple breadcrumb trail is plenty.
No: it displays it if a power meter sends it. That is a frequent confusion.
Two wireless standards coexist for sensors. A computer that handles both accepts practically every sensor on the market.
Transflective screens are designed for it and look dull in shade. It is the opposite of a phone screen.
It does almost everything, with far less battery life and sunlight readability, and exposure to knocks and rain.
An out-front mount puts the computer in your field of view and clear of the bars. That is more readable and safer than a side mount.
A power bank and a waterproof mount allow charging while riding on models that accept it.
Stated battery life assumes the screen off and navigation inactive: with mapping, expect markedly less. The computer displays power, it does not measure it — that takes a sensor — and a transflective screen reads in the sun precisely because it looks dull in the shade.
To appear here, a characteristic has to be stated by four items in five. Short of that, the column would mostly say nobody publishes.
| Model | Price | Screen |
|---|---|---|
| GEOID CC700 | $60 | 2.8 inch color, 6H hardened glass |
| Magene C506 | $100 | 2.4 inch color touchscreen, plus three buttons |
| Garmin 010-02703-10 | $260 | 3 inch touchscreen |
| Wahoo Fitness WFCC9 | $325 | — |
| Bryton Rider S810 | — | 3.5 inch high-resolution color touchscreen |
Specifications: manufacturer sheets for bike gear and the matching Amazon product pages. Prices and availability: Keepa. Every figure in this table names its source.
Most recent revision in this category: August 30, 2026.
Prices quoted in these summaries are dated readings. The live price is shown next to each product.
