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Posts tagged: Consumer Rights

14 posts found

A medical pulse oximeter clipped to a fingertip, using transmissive light technology that consumer smart rings cannot replicate
Spo2Pulse OximetryFda

Why Your Smart Ring SpO2 Reading Is Probably a Guess

Consumer wearables run reflective PPG on body parts never designed for it. The FDA has scrutinized these monitors since 2022 for systematic bias. Smart rings compound the problem with clamp pressure and unvalidated algorithms.

James Hoffmann James Hoffmann
May 28, 2026 11 min read
A simple budget fitness tracker on a wrist, representing the low-cost wearable hardware that Pebble and independent smart ring makers are building
Smart RingsPebbleHardware

Pebble's $75 Index 01 and the Great Smart Ring Divergence

The smart ring market is splitting into three species: premium health platforms, single-purpose tools, and subscription-hungry AI wrappers. Pebble's Index 01 proves the divergence is real.

James Hoffmann James Hoffmann
May 26, 2026 12 min read
A dark metallic smart ring on a textured surface, representing the last independent hardware in an industry racing toward subscriptions
SubscriptionWearablesConsumer Rights

The No-Subscription Smart Ring Is Not Dead. The Industry Just Wants You to Think So.

Oura filed for IPO. RingConn got pulled from Amazon. Ultrahuman and Luna are banned in the US. A Reddit user asked if the no-subscription smart ring dream is dead. It is not. But the remaining options are smaller, founder-led, and built on economics that venture capital hates.

James Hoffmann James Hoffmann
May 25, 2026 11 min read
A digital lock concept representing how wearable companies trap user health data behind proprietary APIs and subscriptions
ApiData PortabilitySubscription

The API Trap: How Wearable Companies Make Your Health Data Disappear When You Cancel

Most wearable APIs are not built for you. They are built for partners who build features that keep you subscribed. Here is how the data lock-in actually works, and how Pulsyn does the opposite.

James Hoffmann James Hoffmann
May 24, 2026 13 min read
A macro shot of a green circuit board with integrated chips — the kind of compact electronics that power a smart ring
WearablesHardwareBusiness Model

The Hardware Margin Nobody Talks About: Why Smart Rings Cost $30 to Build and $350 to Buy

Smart rings sell for $300 to $500. The parts inside cost roughly $30. That 90% gross margin is not a secret, but nobody talks about it because the real product is not the ring. It is your biometric data stream.

James Hoffmann James Hoffmann
May 21, 2026 12 min read