A bracelet can carry a few small backup functions without taking another pocket. The Atomic Bear Paracord Bracelet 2 Pack Adjustable, Fire Starter, Loud Whistle combines adjustable paracord with a fire starter and a whistle.

The two-pack is useful if two people want one or if you want to keep a spare with a bag. I would judge each bracelet on comfortable fit and whether the small functions are usable, rather than let the number of features make the decision.

What the Bracelet Brings Together

Adjustable fit: Check the listed range against the intended wrist.
Paracord construction: Wearable cordage rather than a loose coil.
Fire-starting feature: A small backup that needs practice.
Whistle: Another way to make an audible signal.

Wearability Comes First

If the bracelet catches on clothing, feels uncomfortable, or is constantly removed, its extra functions won't be close by when wanted. I would try it with the jacket cuffs and gloves you normally wear outdoors.

There is also a practical tradeoff if the cord is deployed. Turning a bracelet into useful cordage may mean it no longer works as a bracelet afterward. I would treat that as an occasional backup supply, not my main source for routinely tying camp equipment.

Small Tools Need Realistic Expectations

The fire starter should be tested in appropriate conditions before it becomes part of a preparedness plan. It still needs suitable tinder and technique. The whistle is worth trying safely so the user knows how it feels and sounds, rather than discovering it for the first time during a stressful situation.

I would compare this for someone who likes wearing a paracord bracelet and will learn the small features. A dedicated whistle and full-size ignition tool may be easier to use and more comfortable to pack separately.

The strongest reason to choose it is that the accessory is already on your wrist. That advantage only exists when you enjoy wearing it, so comfort deserves as much attention as the survival wording in the listing.