Latest news from asteroidos.org is that their WearOS replacement is good-to-go.
This is probably of zero interest to endurance athletes right now. However interesting things might come from it. I’ll keep this one short a do a few bullet points
- AsteroidOS covers basic ‘smart’ functionality when linked only to an Android smartphone
- It’s highly customisable, has a SDK and is built on standard Linux technologies
- Currently working on the LG G Watch, LG G Watch Urbane, LG G Watch R, Asus Zenwatch 1, Asus Zenwatch 2, Asus Zenwatch 3, and Sony Smartwatch 3. Some of these WearOS watches will not support later WearOS version, so AsteroidOS might offer an upgrade path down the line.
It perhaps sounds a bit far-fetched that this will turn into anything. Who is going to develop sports apps for these watches? Well, probably no-one right now. but what struck me from reviewing the Amazfit STRATOS is that there is a quite extensive network of developers writing custom apps for the Amazfit BIP and PACE and I understnad that some of that will also work on the STRATOS (Android-based). Once these things gather momentum they can keep snowballign along.
https://youtu.be/bEmKH7ylSXc
Last Updated on 11 April 2026 by the5krunner
My favourite kit and nutrition
- Injinji – Runners protect your toes. Avoid discomfort and minor injury. Run more. Run faster. I use them.
- Garmin 90-degree charging adapter — The small adapter that keeps your charging cables tidy. Essential for race day. I use one.
- Garmin charging puck — the fastest and most reliable way to top up your Garmin before a session. I use one.
- Ravemen FR300 — Front light that mounts directly under your Garmin or Wahoo head unit. Keeps your bars clean and your beam pointed where it matters. I use one.
- Body Glide – The blue anti-chafe stick that all swimmers and many runners use. I use it.
- Maurten — The race nutrition trusted by elite athletes. Gels and drink mixes engineered to be easy on the stomach. I use them.
- Garmin Varia RTL515 — A radar rear light that alerts you to vehicles approaching from behind. Pairs with your Edge or Garmin watch. I use this model.
- Favero Assioma Pro RS2 — The power-meter pedals most serious cyclists choose. Accurate, easy to move between bikes. I use this model.
- Garmin Forerunner 970 — A serious choice for a pro-grade triathlon watch. I use this.
- Polar H10 — My daily driver for accurate, waking HRV readings.
- Wahoo ELEMNT Roam 3 — The bike computer that has the feature Garmin lacks: usability. I use mine on most rides.
Reader-Powered Content
This content is not sponsored. It’s mostly me behind the labour of love, which is this site, and I appreciate everyone who supports it.
Support the site: Follow (free, fewer ads) · Subscribe (paid, ad-free) · Buy Me A Coffee ❤️
All articles are written by real people, fact-checked, and verified for originality. See the Editorial Policy. FTC: Affiliate Disclosure — some links pay commission. As an Amazon Associate, I earn from qualifying purchases.
tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
