Oura Ring 4 by Oura — I first got an Oura ring in January 2024 as part of our FURTHER 6 day event. I've been hooked and impressed with the biometrics ever since! I wore the Oura ring for my 6 Day World Best, which was used for the research project.
I've found tracking body temp as a helpful metric of predicting ovulation. I also like following the sleep metrics and that it tracks and quantifies naps as part of total daily sleep. I also like to track resting heartrate and heartrate variability as markers of stress and fitness.
Fenix HL18R-T V2.0 Rechargeable Headlamp by Fenix — I've been rocking the first version of this headlamp since 2021. Great bang for the buck! I do a lot of night running in Tucson on roads and use mostly the low setting for some road visibility. It's lightweight, comfortable, and has good/long medium setting for most trails or high for technical trail. It has a rechargeable lithium battery pack or can swap out for triple A batteries. I have two of this headlamp.
DJI Osmo Pocket 3 Black by DJI — I got the DJI Osmo Pocket in 2022, and it's been one of my most favorite gadgets!