The new accessory moves the sensor to the bicep, tackling optical tracking issues during workouts
Polar has launched the Sport Armband for its Loop, bringing a dedicated upper-arm wearing option to its screenless tracker a year after the device's initial release.
Priced at $29.90 / £25.50, the elastic textile strap moves the sensor module from the wrist to the bicep to deliver greater stability during heavy training sessions—not unlike the existing Polar Verity Sense.
The launch directly addresses a primary hardware omission we highlighted in our review of the Polar Loop (Gen 2) last year.
While we praised its slim, comfortable design and subscription-free model, the lack of a bicep strap left the tracker struggling during HIIT, heavy weightlifting, and rapid interval sessions where wrist flexion and grip tension cause optical heart rate dropouts.
By shifting the sensor to the upper arm, the new armband provides a far more stable surface to maintain consistent pulse readings when gripping weights or flexing the arm.
Magnetic silicone and leather bands join the lineup
While an upper-arm strap won't overhaul the dated, unoptimized feel of the Polar Flow app—our biggest criticism of the screenless setup—it removes a major performance issue for athletes who rely on the Loop for accurate workout tracking.
Alongside the Armband, Polar is also introducing new everyday accessories for the device. These include a reversible, two-color magnetic silicone wristband ($29.99 / £25.50) for quick adjustments, as well as a new collection made from vegetable-tanned leather for more formal occasions.
The Sports Armband and new wristband collections are available now.
