Amazfit Helio vs RingConn Gen 2 Rings

Amazfit Helio Ring vs RingConn Gen 2 (2026)

These are the two rings people cross-shop when they want smart-ring tracking without a subscription and without Oura money. The Amazfit Helio Ring is the cheaper one at $199; the RingConn Gen 2 costs $100 more ($299) but fixes the Helio’s two biggest weaknesses — battery and fit — with a 10–12-day charge and sizes 6 to 14.

Amazfit Helio Ring or RingConn Gen 2: which is better?

Higher ONDA score: RingConn Gen 2 (7.0 vs 6.6)

Both are subscription-free rings. The Amazfit Helio Ring is cheaper ($199) and very light; the RingConn Gen 2 wins day to day with a 10–12-day battery (vs about 2.5–3 days), nine sizes and solid tracking for $299. For most people RingConn is the better buy; the Helio wins on price and comfort if one of its three sizes fits.

Head-to-head breakdown

Amazfit Helio Ring vs RingConn Gen 2 — head-to-head comparison by criterion
Criterion	Winner	Why
Price	Amazfit Helio Ring	Amazfit Helio: $199 list. RingConn Gen 2: $299. The Helio is the cheaper capable subscription-free ring.
Subscription	Tie	Tie — both are one-time purchases with no membership for core metrics.
Battery	RingConn Gen 2	RingConn Gen 2: 10–12 days depending on size, plus a charging case that adds about 150 days. Amazfit Helio: about 2.5–3 days in real-world use. Not close.
Fit & sizing	RingConn Gen 2	The Helio ships in only three sizes (8, 10, 12), so many fingers can’t get a proper fit. RingConn Gen 2 comes in sizes 6 to 14.
Sleep & HRV tracking	Tie	Practically equal: both track overnight sleep and HRV for the price, and neither has an independent validation (as of October 2026); the everyday difference is small.
Comfort	Amazfit Helio Ring	The Helio is exceptionally light (under 4 g) and thin (2.6 mm) — a slight comfort edge if it fits.

Choose Amazfit Helio Ring

Choose the Amazfit Helio Ring if the lowest price and the lightest ring are the priority and one of its three sizes (8, 10, 12) fits you.

Choose RingConn Gen 2

Choose the RingConn Gen 2 if you want a much longer battery, a wide size range (6–14) and dependable tracking, and $100 more is acceptable.

The short answer

RingConn Gen 2 is the better everyday ring for most people: $299 with no subscription, a 10–12-day battery and sizes 6 to 14. The Amazfit Helio Ring is $100 cheaper and lighter, but lasts only about 2.5–3 days per charge and comes in just three sizes. Buy the Helio only if price is the deciding factor and one of its sizes fits you.

| | Amazfit Helio Ring | RingConn Gen 2 | |---|---|---| | Price | $199 | $299 | | Subscription | None | None | | Battery | ~2.5–3 days | 10–12 days; case adds ~150 days | | Sizes | 8, 10, 12 | 6–14 | | Weight | Under 4 g, 2.6 mm thin | Light titanium | | App | Zepp (iOS and Android) | RingConn (iOS and Android) |

Choose the Amazfit Helio Ring if…

the lowest price is the priority;
you want the lightest, thinnest ring;
one of its three sizes fits you and you accept charging every few days.

Full details in our Amazfit Helio Ring review.

Choose the RingConn Gen 2 if…

you hate frequent charging — gaps in charging mean gaps in your overnight HRV;
your finger size is not 8, 10 or 12;
$100 more for a much longer battery is acceptable.

Full details in our RingConn Gen 2 review.

How accurate are they?

Both rings read heart rate and HRV from the finger at night, when you lie still and the signal is cleanest. That makes them useful for multi-day trends, not for medical readings. Neither has Oura’s body of published validation. To put your numbers in context, see normal HRV by age.

Related comparisons

Against Oura: Amazfit Helio vs Oura Ring 4 and Oura Ring 4 vs RingConn Gen 2. Against Samsung: Amazfit Helio vs Samsung Galaxy Ring. Full ranking: best HRV trackers of 2026.

Sources

RingConn Gen 2 — official product page (price, battery, sizes), checked 2026-10-03
Amazfit — official site (Helio Ring sizes and specifications)

Are your numbers normal?

What is a normal HRV for your age?Typical ranges by age and sex, and why your own trend matters more.
What is a normal resting heart rate by age?Reference ranges and when a high or low reading is worth checking.
Check your heart rate with your phone cameraFree, in the browser, no wearable needed.

Common questions

Is RingConn Gen 2 better than Amazfit Helio Ring?

For most people, yes. RingConn Gen 2 ($299) lasts 10–12 days per charge versus about 3 days for the Helio, and comes in sizes 6 to 14 versus three sizes. The Amazfit Helio Ring ($199) is cheaper and lighter, so it wins only if price matters most and a size fits.

Which smart ring has better battery life, Amazfit Helio or RingConn Gen 2?

RingConn Gen 2, by a wide margin: 10–12 days per charge, and its charging case extends that to about 150 days in total. The Amazfit Helio Ring lasts about 2.5–3 days in real-world use.

What sizes does the Amazfit Helio Ring come in?

Only three: 8, 10 and 12. If your finger falls between or outside those, the RingConn Gen 2, with sizes 6 to 14, is the safer choice. Use a sizing kit before buying either ring.

Do Amazfit Helio Ring and RingConn Gen 2 need a subscription?

No. Both are one-time purchases with no subscription for core sleep, HRV and heart-rate tracking. Over two years that makes either far cheaper than an Oura Ring 4 with its membership.

Are cheap smart rings accurate for HRV?

Good enough for overnight trends. Both rings measure HRV optically from the finger while you sleep, when the signal is cleanest. Neither has as much published validation as Oura, so compare your numbers with your own baseline rather than reading single nights.