RingConn Gen 2 Air vs Amazfit Helio Ring

How they differ in real use

Built from our smart rings without subscription scoring, each product's published specifications, and verified owner feedback — not hands-on testing.

Both the RingConn Gen 2 Air and the Amazfit Helio Ring made our Top 5 Smart Rings Without a Subscription, at #4 and #5 (best budget). The cheapest way into RingConn's tracking: it has the Gen 2's 2.0 mm by 6.8 mm profile and up to 10 days of rated battery, with iPhone and Android support, at a $199 list price, $100 under the Gen 2. It ranks fourth because it drops the Gen 2's sleep apnea monitoring, trades titanium alloy for slightly heavier PVD-coated titanium steel (2.5-4 g), and charges on a wired dock rather than a battery case. Against the Amazfit Helio Ring it wins clearly on battery (10 vs 4 days), size range (6-14 vs three sizes) and profile (2.0 vs 2.6 mm), which outweighs the Helio's lower price. The lowest-cost ring here, and the only one with an EDA sensor for a direct stress signal; Amazfit has made every Zepp feature free for life, and Live Science and Tom's Guide both rated its sleep tracking well for the price. It ranks last because its up-to-4-day rating (about 3 days in Live Science's use) is less than half the Gen 2 Air's 10 days, it comes in only sizes 8, 10 and 12, and at 2.6 mm by 8 mm it is the bulkiest ring in the list. Buy it only if price matters more than charging frequency and your size is offered.

We score smart rings without a subscription on Tracking Accuracy (25%), Battery Life (20%), Health Features (15%), App & Insights (15%), Comfort & Build (10%) and Value (15%). On that basis the RingConn Gen 2 Air totals 7.3 out of 10 and the Amazfit Helio Ring 6.6. The widest gap is Battery Life, where the RingConn Gen 2 Air scores 8 against 4 for the Amazfit Helio Ring: rated days per charge, how close reviewers came to it, and whether a portable charging case is included. Health Features also separates them: 7 for the Amazfit Helio Ring versus 6 for the RingConn Gen 2 Air. The Amazfit Helio Ring claws back ground on Value.

On paper, the specifications that actually differ: Rated Battery: Up to 10 days on the RingConn Gen 2 Air versus Up to 4 days on the Amazfit Helio Ring; Charging: Wired charging dock (about 90 minutes) on the RingConn Gen 2 Air versus Charging dock (about 1 hr 40 min) on the Amazfit Helio Ring; Sleep Apnea Insights: No on the RingConn Gen 2 Air versus Not offered on the Amazfit Helio Ring; Phone Compatibility: iPhone (iOS 17+) and Android 10+ on the RingConn Gen 2 Air versus iPhone (iOS 14+) and Android 7+ on the Amazfit Helio Ring; Thickness / Width: 2.0 mm / 6.8 mm on the RingConn Gen 2 Air versus 2.6 mm / 8.0 mm on the Amazfit Helio Ring; Weight: 2.5-4 g on the RingConn Gen 2 Air versus 3.65-3.82 g on the Amazfit Helio Ring.

Check current pricing at the merchant links below. Owners praise the RingConn Gen 2 Air for same thin 2.0 mm by 6.8 mm profile as the Gen 2 at a $100 lower list price and up to 10 days rated battery, more than double the Amazfit Helio Ring's rating; the most common complaint is no sleep apnea monitoring, the main Gen 2 feature it drops. Owners praise the Amazfit Helio Ring for lowest price here, with every Zepp app feature free for life and EDA sensor adds a stress signal the other rings estimate from heart rate alone; the most common complaint is up to 4 days rated battery (about 3 days in Live Science's use), the shortest here by far.