Power2Max
Power2Max NGeco
$490
Best Cycling Power Meters · head-to-head
A sourced, side-by-side comparison. Sigeyi AXO SL is cheaper at $389.5. Every spec and price links to its source.
Power2Max
$490
Sigeyi
$389.5Cheaper
On the specs we track, they're closely matched. The Sigeyi AXO SL is the cheaper at $389.5.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | Sigeyi AXO SL |
|---|---|---|
| US price | $490 | $389.5 |
| Brand | Power2Max | Sigeyi |
| Released | — | — |
| Mount type | spider | spider |
| Measurement sides | dual-sided | — |
| Accuracy pct | 2 | 1 |
| Weight grams | — | — |
| Battery type | CR2450 | rechargeable-liion |
| Battery life hrs | 300 | 300 |
| Connectivity | ANT+/BLE | ANT+/BLE |
| Power balance measured | No | No |
| Cycling dynamics | No | Yes |
| Waterproof rating | — | IP67 |
| Warranty years | 2 | 2 |
Sources — Power2Max NGeco: power2max.com (verified 2026-07-13). Sigeyi AXO SL: sigeyishop.com (verified 2026-07-13).
Where the two actually differ on the specs we track (3 of 11). Matching specs are omitted.