KOSPET M4 vs Active Max: Rectangle or Round Routes?

Automated research by Top10Scout editorial team · Not hands-on tested · Last verified 2026-10-05

Published 2026-10-05 · Updated 2026-10-05

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Choose Active Max for the lower reference price, round layout and higher published endurance. Choose Tank M4 when its larger rectangular display and documented local audio suit you better. Both describe prepared offline routes. Compare the actual map transfer and playback steps before choosing.

Does the price gap buy a different daily interaction?

The checked M4 Silver Amazon.com listing shows $209.99 from Kospet Direct; Active Max’s manufacturer reference is $169.99. The $40.00 gap compares separate sellers’ hardware references. The Amazon browser delivery session was China, so shipping and import estimates are excluded and the comparison is not a US checkout quote.

If you prefer the round design and only need a prepared course, Max is our value starting point. M4 should earn its extra reference spending through the rectangle or listening routine you actually want, rather than a claim that the cheaper watch lacks all mapping.

Which large display format suits the information you read?

M4 lists a 1.96" display in the rectangular design shown in its exact-model photos. Active Max lists a 1.5" round display and a 48.5 x 48.5 x 12.2mm body. Different shapes mean a diagonal is not a complete comparison of useful map or notification area.

Inspect the pictured screen layout, button placement and strap joins. We have not measured moving-screen readability or worn these watches overnight. A larger rectangular view may suit stacked information; a round face may be the design you want every day. Choose the one you will keep wearing rather than one that only looks advantageous in a dimension row.

What map and listening preparation differs?

M4 describes importing GPX or KML through Apexmove and downloading offline maps using a computer or tablet. It advertises 32GB nominal map-and-audio storage, with system files using some capacity. Its source describes local playback without a phone. Check file support and transfer steps instead of assuming every music service works.

Active Max describes imported-route guidance and 4GB storage, but its checked page retains a podcast-support software-update note. That is not proof of the current listening routine you intend. Maps, course files and stored content should each be prepared and checked, even on a watch that can record satellite position without the phone.

Are battery and optional extras reasons to switch?

M4 lists 14-15 Days typical use and 21-22 Hours continuous GPS. Active Max lists Up to 25 days and Up to 64 hours. These are manufacturer maximums with their own settings and workloads, not a matched endurance test. They make Max worth investigating when charging margin is the repeated complaint.

M4’s source describes optional paid faces and a separately sold power accessory. Max’s core Zepp tracking is described as free, with optional Aura separate. Neither hardware reference includes those store extras. If you already own either device, changing to the other should solve a screen, preparation or playback problem; shared map and GPS labels are insufficient on their own.

Which prices are being compared?

These are separate listed hardware reference prices from Kospet Direct and Amazfit US store. The displayed difference is not a delivered checkout saving; tax, shipping, promotions and package details can differ.