Fire-Boltt

Fire-Boltt smartwatches and trackers: band width or band system for each model.

Fire-Boltt models

More Fire-Boltt references, by line

Lines without a guide page yet: every reference we list for them, with its strap size.

Asteroid

  • Asteroid Black22 mm

Gladiator

  • Gladiator 1.96 Black22 mm

Invincible Plus

  • Invincible Plus Black22 mm

Ninja Call Pro Max

  • Ninja Call Pro Max Black20 mm

Phoenix Ultra

  • Phoenix Ultra Black22 mm
  • Phoenix Ultra Silver22 mm

Talk Ultra

  • Talk Ultra Black22 mm

Visionary Ultra

  • Visionary Ultra Black20 mm

Help

What is lug width?

The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

Measure it in 30 seconds

  1. Take the strap off, or look at the back of it: many straps print their width.
  2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
  3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

Strap, quick release or system?

Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.