Use offline maps on your KOSPET outdoor GPS watch to check nearby trail detail and follow a prepared hiking route without mobile coverage. This guide covers the TANK T4, TANK M4, TANK T4 SE and TANK M4 SE, with a map installation video and practical navigation advice for junctions, switchbacks and detours.
All four models support offline maps and GPX/KML route import, and share the same map download process. Their published total storage differs:
| Models | Total storage |
|---|---|
| TANK T4 and TANK M4 | 32GB |
| TANK T4 SE and TANK M4 SE | 512MB |
Compare the map package size with your watch’s available space before downloading. System files and other content use part of that capacity.
Understand Maps, Routes and GPS Positioning
| Element | What it gives you |
|---|---|
| Offline map | Geographic detail stored for a selected region. |
| Hiking route | A planned course created in Apexmove or imported as a GPX/KML file. |
| GPS position | Your estimated current location, calculated from satellite signals. |
Choose Map Coverage for the Whole Hike
Find your intended trailhead and finish before selecting a region. Include the approach from the car park, the full walking route and the return leg. For a circular walk, check that the far side of the loop falls inside the download boundary.
Allow coverage around useful exit paths and possible diversions. A narrow map area following only the main trail can leave you without surrounding detail if the outing changes.
How to Download Offline Maps to Your Outdoor GPS Watch
Have your watch, its dock, a data-capable cable, a computer and your phone with Apexmove ready. Open the Offline Map Resource Download Center, then follow the video for sign-in, region selection, extraction and transfer to the watch.
- Download Your Chosen Region. Open the Offline Map Resource Download Center on your computer. Complete the sign-in steps shown on the page, using Apexmove if prompted, then find and download the region you need.Extract the download so that the region folder is ready to transfer.
- Move the Map to Your Watch. Connect the watch to your computer through its dock. Enable file transfer or MTP mode if prompted, then copy the extracted region folder into the watch’s Map directory.
- Keep the connection in place until copying finishes. The watch needs the extracted map files, rather than just the compressed download.
- Open the Installed Map. Open the downloaded region on your watch and check that its map detail appears. Once it is available locally, you can view that area without a mobile connection.
After the transfer, open the downloaded region on the watch and check that geographic detail appears. The map is ready when the watch can display that area locally after you disconnect from the computer.
Create or Import Your Hiking Route in Apexmove
Choose How to Prepare the Course
If you are planning a route yourself, open Explore → + → Create Route in Apexmove. Place your start and finish, then review the proposed course before saving.
If you already have a trail file, select Import Route (GPX/KML). Use a source that identifies the route and provides enough information to assess whether it matches your outing.
Check the Details That Affect Your Walk
| Check | What to confirm |
|---|---|
| Starting point | The course begins at your intended trailhead or car park. |
| Direction | A circular route follows your chosen clockwise or anticlockwise direction. |
| Route type | You know whether it is a loop, an out-and-back walk or a route finishing elsewhere. |
| Distance and ascent | The planned effort matches the outing you have prepared for. |
| Source and date | You can identify where the file came from and check recent trail information. |
Send and Preview the Route
Give the course a clear name, such as the trail name and direction, then choose Save → Send to Watch.
On the watch, open Navigation and find the course in the saved-route list. Use Route Preview to confirm that the transferred course has the expected start, finish and shape. If it extends beyond your downloaded map, add coverage for the missing section.
Using Your Outdoor GPS Watch on the Trail
At the Trailhead: Select the Course and Confirm Your Position
Open your saved course and choose Use Route. You can access navigation from the watch’s navigation or workout page; use a supported GPS activity when recording the hike.
Wait for a satellite fix, then compare the position marker with the actual trailhead. Check the opening section against the entrance sign and visible paths before setting off. A course starting on another side of the valley needs correcting before you follow it.
At a Fork: Match the Next Bend to the Paths Ahead
A wide gravel track continues straight while a narrower path climbs left. Your saved course bends left too.
Find your position marker and the next bend on the screen. Match that bend to the physical junction and trail signs, then check your position again after taking the branch. If your movement continues away from the planned course, pause and reassess the junction.
On Switchbacks: Identify Your Current Section
Several bends may sit close together on the display during a zigzag climb. Read the course forward from your current position, following the sequence of turns.
Keep to the connected trail section. The small gap between two lines on the map may cross steep ground; it does not establish a walkable shortcut.
Under Tree Cover: Assess a Position Jump Before Reacting
If the marker suddenly moves beside a clearly marked trail, compare the next few position updates with the ground around you. Trees and cliffs can interfere with satellite reception.
Wait in a safe place, or move to a more open spot if practical. Use a recognisable junction, sign or another navigation source to distinguish a positioning error from an actual wrong turn.
At a Blocked Path: Check Where an Alternative Leads
When a bridge is closed or a path is obstructed, examine nearby connections in the downloaded map. Check where a possible diversion rejoins your course and whether its full length remains inside the stored region.
For a diversion involving several turns, use a larger offline phone map and current local information to assess the route. A visible line on the watch does not confirm that a path is open or passable.
Plan Battery Life for the Whole Hike
KOSPET publishes up to 21–22 hours of continuous GPS use for the standard T4/M4 and up to 22 hours for the T4 SE/M4 SE. These figures differ from everyday smartwatch battery life and do not guarantee the same runtime with frequent map viewing.
Start fully charged and allow for slower progress, breaks and an unexpected return. A familiar local walk can help you understand consumption with your usual GPS settings and map use.
For a trip extending beyond a comfortable battery margin, plan charging around the route and keep another suitable navigation resource available.
FAQs
When Should I Update My Offline Maps?
Check for newer map resources before visiting an unfamiliar area or returning after a long gap. A downloaded map reflects the data available when it was prepared; it will not automatically show later trail changes. After storms or seasonal closures, check current park notices as well.
Can I Record a Hike Without Loading a Planned Route?
Yes. Start a GPS-enabled outdoor activity without selecting a saved course. This is useful for familiar trails or outings with no fixed itinerary. After the walk, save the activity and sync it with Apexmove to review your recorded outing.
Can I Share a Route with Someone Using Another Watch Brand?
Yes, provided their device or companion app supports GPX import. Share the original GPX file so they can load it through their own system. GPX exchanges route and track data; the recipient will need to obtain any offline maps separately for their watch.
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