Amazfit Helio Strap

Full review

Last researched: 13 Oct 2026

Verified specifications

• Type: screen-free fitness tracker wristband (fabric band, no display).
• Color: black (US listing).
• Battery life: 10 days claimed; Tom's Guide measured 12 days of wear including a couple of non-wear days.
• Water resistance: 5 ATM (up to 50 meters).
• Connectivity: Bluetooth; no built-in GPS — route maps come from the paired phone.
• Weight: 0.6 oz (~17 g) per Tom's Guide spec table; seed spec says 20 g (unresolved).
• Dimensions: 6.7 × 3.5 × 1.4 in (strap package); tracker unit itself is 1.4 in long.
• Heart rate: 24/7 tracking via BioTracker sensor; can act as a real-time HR source for compatible Amazfit and third-party smartwatches.
• Sports modes: 27 per retailer listings (Target, Walmart, amazfits.com); seed spec says 50+ (unverified).
• App: Zepp app — no subscription fee.
• Metrics: sleep tracking (incl. sleep-apnea risk, HR, breaths per minute), Biocharge recovery score, Exertion score, PAI fitness score, automatic workout detection, bedtime journal.
• Price at launch: $99 US per Tom's Guide (Oct 2025); also $99.99 at Macy's and $100 at REI.
• Included: small charger (easy to lose); full accessory list not documented in sources read.
• Warranty: no warranty information found for the US market.

Battery life and charging

The charger is small — Tom's Guide calls it "incredibly losable" — so keep track of it between charges.

Metrics and app

All data lives in the Zepp app: sleep tracking with sleep-apnea risk, heart rate and breaths per minute; Biocharge recovery score; Exertion score; PAI fitness score; and a bedtime journal. There is no subscription fee. The strap can also act as a real-time heart-rate source for compatible Amazfit and third-party smartwatches.

Workouts and GPS

The strap has no GPS. Route maps in the Zepp app are drawn from the paired phone's GPS, and the reviewer notes the strap does not cleanly separate a workout from a preceding car drive. Automatic workout detection is unreliable — in Tom's Guide's three-week test a yoga class was not recorded at all, while cycle rides to and from the gym were falsely detected. The reviewer manually started workouts instead. Retailer listings advertise 27 sports modes.

Value and running costs

At $99 the Helio Strap is a low-cost entry into screen-free recovery tracking with no subscription and no recurring costs. Tom's Guide calls it "the most affordable Whoop alternative I've seen." Above $100–$120, value weakens as Fitbit and Whoop alternatives with stronger accuracy evidence become competitive. No historical pricing data was found. No warranty information was found for the US market.

Is it worth it?

If you want sleep and recovery metrics without a subscription and don't need GPS or a display, the Helio Strap covers the basics at $99. Buyers should treat accuracy claims as unverified — no lab test exists — and expect to start workouts manually. The product launched in 2025 and no substantial owner-discussion evidence exists yet. It is distinct from the Amazfit Helio Strap Pro (a separate, higher-end model with a multi-sensor movement-tracking system) and the Amazfit Helio Ring.

Which model this is

This page covers the Amazfit Helio Strap, ASIN B0F9J3TFMB(paid link), sold in black in the US. Launched in 2025 (India launch August 2025 alongside the Amazfit Balance 2). Retailers carrying it include Amazon, Target, Walmart, Best Buy, REI, Macy's, Newegg and amazfits.com.

Sources

Manufacturer:

• Amazfit Helio Strap — official US product page
• Amazfit US support product list
• Amazfit Helio Strap — Official Amazfit Store

Retailers:

• Amazfit Helio Strap — Target
• Amazfit Helio Strap — Walmart
• Amazfit Helio Strap — Best Buy

Independent reviews:

• Amazfit Helio Strap review: No subscription, no screen, no problem — Tom's Guide

Reference:

• Amazfit — Wikipedia