Why People Wear WHOOP on Their Bicep (And a Better Alternative)
If you spend time in watch communities, you'll eventually come across the bicep WHOOP setup: someone who loves their watch but also wants fitness data, and has solved the problem by wearing WHOOP on their upper arm, hidden under a shirt or jacket sleeve. It's a clever workaround. It's also a sign of how broken the wearable market has been for watch wearers — when the best solution available involves hiding a $200+/year device under your clothing.
Why do people wear WHOOP on the bicep at all?
WHOOP has an interesting relationship with its form factor. Unlike most fitness trackers, it has no screen and minimal visual presence — by smartwatch standards, it's already discreet. But it's still a wrist-worn band, which means it occupies the same real estate as your watch. Watch wearers who want WHOOP data without giving up their watch have discovered that the upper arm is a viable alternative placement. WHOOP officially supports bicep wear with an arm sleeve accessory, acknowledging that this is a real use case.
How well does the bicep placement actually work?
For the specific metrics WHOOP focuses on — heart rate and recovery data — bicep placement can be reasonably accurate during rest but loses accuracy during exercise, particularly for activities involving arm movement. The further from the wrist the sensor is, the more movement artifacts affect the optical heart rate reading. WHOOP acknowledges this and recommends wrist placement for optimal accuracy. The bicep is a compromise that trades data quality for aesthetic convenience.
What are the comfort issues?
The bicep sleeve can be uncomfortable during extended wear, particularly in warm weather or during workouts. It can create a visible band under lightweight shirts. Some people find the compression uncomfortable for sleeping. And for people with larger arms, sizing can be an issue. It's a viable solution — WHOOP wouldn't sell the accessory if it weren't — but most people who use it describe it as an awkward workaround rather than an ideal setup.
What's the cost?
WHOOP's subscription starts at $199/year with no device ownership. The bicep sleeve is an additional purchase. Over three years, you're spending $600+ and compromising data accuracy in the process. For watch wearers who primarily want activity tracking and step data, this is a significant investment for an imperfect outcome.
Is there a better alternative for watch wearers who want fitness tracking?
The Heir solves the same underlying problem — how do I track fitness without giving up my watch — more elegantly. It attaches directly to the caseback of your existing watch via microsuction, sitting invisibly under the watch where it naturally rests against your wrist. No arm sleeve. No bicep discomfort. No wrist conflict. The Heir tracks steps, calories, active distance, active time, and activity classification, syncing to Apple Health or Health Connect. One-time purchase, no subscription.
How does it compare to WHOOP specifically?
WHOOP and the Heir are different products for different buyers. WHOOP offers advanced metrics (heart rate, recovery scoring, sleep analysis) behind a subscription model, designed for serious athletes who want deep performance data. The Heir offers activity tracking (steps, calories, active time) with no subscription, designed for people who want to quantify their movement without giving up their watch. If you've been wearing WHOOP on your bicep primarily for step and activity data, the Heir is a more comfortable, more affordable, and more sustainable solution. If you rely on WHOOP's specific recovery and athletic performance metrics, they serve different needs.
What's the takeaway?
The bicep WHOOP is an impressive feat of personal engineering — a workaround that demonstrates how much some watch wearers want fitness data. The Heir is the product that makes the workaround unnecessary. See what the Heir offers here.