How to Wear Your Amazfit Helio on Your Bicep
The Amazfit Helio supports bicep placement. This guide covers what band to use, how to attach it, which arm position gives the best accuracy, and the difference between the Bicep Loop V2 and Nylon options.
Yes — you can wear the Amazfit Helio on your upper arm. The Helio's standard 22mm lug width is compatible with bicep-specific bands and adapters. This guide covers how to do it, what you need, and whether it affects accuracy.
What you need for bicep wear
The Amazfit Helio does not come with a bicep band. You need either the Bicep Loop V2 (silicone, fits up to 40cm arm circumference) or the Bicep Loop Nylon (22mm woven nylon, available in four colourways). Both attach directly to the Helio's 22mm lugs. No adapter required.
Step-by-step: how to attach the Bicep Loop
Step 1. Remove the stock wrist strap from the Amazfit Helio by pressing the quick-release pins on each lug.
Step 2. Slide the Bicep Loop V2 or Nylon band onto the Helio's 22mm lugs until you hear a click on both sides.
Step 3. Wrap the band around your upper arm — approximately 2–3cm above the elbow. The sensor should face inward against the skin.
Step 4. Fasten the closure. The band should be snug but not restrict blood flow. You should be able to fit one finger under it.
Which arm position gives the best accuracy?
Place the Helio on your upper arm with the sensor flat against the muscle belly. Avoid wearing it directly over bone. For heart rate accuracy during high-intensity training, tighter is generally better — loose bands introduce motion artefact.
Bicep Loop V2 vs Bicep Loop Nylon — which should you choose?
The Bicep Loop V2 is silicone with a reinforced closure. It stays locked during CrossFit, Olympic lifting, and Hyrox-style workouts. Best for athletes doing high-movement training. Available in Onyx Black and Sand Dune, fits arms up to 40cm circumference.
The Bicep Loop Nylon is a 22mm woven band. More breathable, better for longer sessions, hot weather, or athletes who prefer a lighter feel. Available in Onyx Black, Stone Grey, Linen White, and Ranger Olive.
Can I use a Whoop band for bicep wear on the Amazfit Helio?
Yes — with an adapter. The EverythingStraps adapter kit connects the Helio's 22mm lugs to any Whoop 4.0, 5.0, or SportsFlex band. Whoop bands are designed for upper arm placement, making this a practical option if you already own Whoop accessories.
Does wearing on the bicep affect accuracy?
The Amazfit Helio is certified for bicep placement. Heart rate tracking is accurate at this position. Some users report marginally better HR accuracy on the bicep versus wrist during high-intensity exercise, particularly activities involving significant wrist movement.
Frequently asked questions
Can I wear the Amazfit Helio on my forearm?
The Helio is designed for wrist or upper arm placement. Forearm placement is not officially supported and may affect sensor accuracy.
Will the bicep band fall off during exercise?
No — the Bicep Loop V2 uses a reinforced closure rated for high-intensity training. It has been tested during CrossFit, running, and Hyrox events.
What arm circumference does the Bicep Loop V2 fit?
Up to 40cm. If your arm is larger, the Nylon band has more adjustability.