The SIGEYI AXO spider based power meter has received a number of updates in recent months that have improved the product a LOT! This video covers my experience with the meter as tested extensively both indoors and out.

Technical Specifications:
β Type: Spider Based Power Meter.
β Compatibility: Road / MTB.
β Wireless Data: ANT+, Bluetooth Smart.
β Measurement: Total Power / Cadence / L/R Balance.
β Power Accuracy: Β±1%.
β Power: 0-2000W.
β Cadence: 30-220RPM (Accelerometer).
β Battery: Rechargeable Li-on / 300hrs / USB Charging.
β Active Temperature Compensation: Yes.
β Auto-Zero: Back pedal.
β Firmware: Upgradable via Sigeyi App.
β Weight: Varies / Claimed 101g SRAM 3-4-110 Version.
β Package: Spider. Charge cable. Manual. Coloured decals.
β Warranty: 2 years.
Links:
Sigeyi UK: https://bit.ly/3lsar0b