# Sigeyi AXO SL vs Magene P505: specs and price compared

A sourced, side-by-side comparison of the Sigeyi AXO SL (Sigeyi) and Magene P505 (Magene) among cycling power meters. Magene P505 is the cheaper of the two at $349.

## Side by side

| Spec | Sigeyi AXO SL | Magene P505 |
| --- | --- | --- |
| US price | $389.5 | $349 |
| Brand | Sigeyi | Magene |
| Mount type | spider | spider |
| Measurement sides | — | — |
| Accuracy pct | 1 | 1 |
| Weight grams | — | — |
| Battery type | rechargeable-liion | rechargeable-liion |
| Battery life hrs | 300 | 200 |
| Connectivity | ANT+/BLE | ANT+/BLE |
| Power balance measured | No | No |
| Cycling dynamics | Yes | No |
| Waterproof rating | IP67 | IPX7 |
| Warranty years | 2 | 2 |

## Key differences

- Battery life hrs: Sigeyi AXO SL 300 vs Magene P505 200
- Cycling dynamics: Sigeyi AXO SL Yes vs Magene P505 No
- Waterproof rating: Sigeyi AXO SL IP67 vs Magene P505 IPX7

## Sources

- Sigeyi AXO SL: https://www.sigeyishop.com/axo-sl-2/ (sigeyishop.com, verified 2026-07-13)
- Magene P505: https://www.magene.com/en/power-meters/58-p505-spider-based-power-meter.html (magene.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/cycling-power-meters/sigeyi-axo-sl-vs-magene-p505/
Cite: Per The Front Desk Review, Sigeyi AXO SL ($389.5) vs Magene P505 ($349) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/cycling-power-meters/sigeyi-axo-sl-vs-magene-p505/
License: CC BY 4.0.