Ray or Sony SmartBand 2?
Sony SmartBand 2 is discontinued. Here's what a current alternative looks like.
Sony SmartBand 2 was a discreet 2015-era band with continuous pulse and stress tracking, which needed charging about every two days. It has been discontinued and its service ended. Ray is a current, supported band that works with modern phones and powers itself from light.
Chargerless Ray
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The short answer
SmartBand 2 is only worth researching for its history. If you want a current discreet band you never charge, Ray is one option.
Sony SmartBand 2 status: Discontinued / legacy.
Side by side
Specs are manufacturer claims and US pricing snapshots, not lab-test results. A blank promise is less useful than a clear tradeoff, so we keep this list deliberately practical.
| What changes | Chargerless Ray | Sony SmartBand 2 |
|---|---|---|
| Format | Screen-free wristband | Screen-free fitness band |
| Power | Light powered; no charging routine | Rechargeable; about 2 days |
| Screen | None | Indicator lights only |
| US price | $219 silver / $249 gold | Discontinued |
| Required subscription | None | Service discontinued |
| Core tracking | Sleep, heart rate, HRV, temperature, steps and light exposure | Activity, sleep, HR and stress |
Still weighing fitness trackers? Read what to look for in a tracker you'll want to wear every day.
Neither wins every category
The best tracker is the one whose compromises fit your life—and that you will actually keep wearing.
Why choose Ray
Ray is far more power-efficient and supported for modern phones.
Why choose Sony SmartBand 2
SmartBand 2 offered continuous pulse and stress tracking in a discreet 2015-era band.
Research note. Competitor facts were checked against Sony SmartBand 2 support on August 20, 2026. Prices, promotions, regional features and announced-product timelines can change. Ray details reflect the current Chargerless product page. Neither product is a substitute for medical care.
Wear your health. Not a charger. Ray tracks the essentials in a 7-gram bracelet powered by light. Silver starts at $219. Gold starts at $249. No required subscription.
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