RingConn Gen 2 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 and the Amazfit Helio Ring made our Top 5 Smart Rings Without a Subscription, at #2 (best value) and #5 (best budget). The best price-to-feature ratio for sleep tracking: it has the same sleep apnea risk assessment, sensors and 150-day charging case as the Gen 3, and at 2.0 mm and 2-3 g it is the slimmest, lightest ring here. It ranks second because it lacks the Gen 3's vibration reminders and vascular insights and its rated battery is a couple of days shorter (10-12 vs up to 14). It beats the Galaxy Ring on battery (10-12 vs 7 days), apnea screening and iPhone support, and beats its own cheaper Gen 2 Air sibling on apnea screening, titanium alloy build and the portable charging case. 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 totals 8.2 out of 10 and the Amazfit Helio Ring 6.6. The widest gap is Battery Life, where the RingConn Gen 2 scores 9 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. Tracking Accuracy also separates them: 8 for the RingConn Gen 2 versus 7 for the Amazfit Helio Ring. The Amazfit Helio Ring claws back ground on Value.

On paper, the specifications that actually differ: Rated Battery: 10-12 days on the RingConn Gen 2 versus Up to 4 days on the Amazfit Helio Ring; Charging: Portable charging case (about 150 days of top-ups) on the RingConn Gen 2 versus Charging dock (about 1 hr 40 min) on the Amazfit Helio Ring; Sleep Apnea Insights: Yes on the RingConn Gen 2 versus Not offered on the Amazfit Helio Ring; Phone Compatibility: iPhone and Android on the RingConn Gen 2 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 versus 2.6 mm / 8.0 mm on the Amazfit Helio Ring; Weight: 2-3 g on the RingConn Gen 2 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 for sleep apnea risk assessment with high-frequency overnight SpO2, the same apnea insights as the Gen 3 and slimmest and lightest ring here: 2.0 mm thick, 2-3 g; the most common complaint is no vibration motor and no vascular trend insights, both Gen 3 additions. 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.