The best survival watches: five that keep working after the phone dies

What a survival watch has to do

Keep working when nothing else does. That means no charger, a compass to walk a bearing, a barometer to see the storm coming, a light for the night, and a case that survives the fall, the river or the cold that started the trouble. It does not mean a paracord strap or a fire-starter buckle; those are accessories on a watch, not properties of it. We scored the field on the rubric, power independence and materials first, from each maker's guide.

Power that does not need an outlet

Four of the five charge from light; the fifth runs a year on a coin you can carry a spare of. None needs a cable. The Instinct is the only one with a rechargeable lithium cell, and Garmin's expedition mode (60 days, unlimited with solar) is the setting that makes it a survival watch rather than a sports one.

Compass and barometer

Casio states direction accuracy within ±10° and pressure within ±3 hPa on the Rangeman; the PRG-340 carries Triple Sensor Version 3; Suunto lists a compass with adjustable declination, an altimeter and a barometer on the Core Alpha; Garmin lists compass, altimeter and barometer glances on the Instinct 3. The GW-M5610U has none, which is honest: it is on this list because a person with a baseplate compass in the lid pocket may only want a watch that never dies. How to use the sensors is on ABC watch explained.

Cold, water and the fall

Cold: Casio lists -10°C on the Rangeman and PRG-340; Garmin -20°C on the Instinct; Suunto -20°C on the Core Alpha. Water: 200 m on the two G-Shocks, 10 ATM on the Instinct, 100 m on the Pro Trek, 30 m on the Core Alpha. The fall: shock resistance on the Casios, a MIL-STD 810 line on the Garmin, and a composite case on the Suunto. The Core Alpha's 30 m is the one rating here that can end a bad day early; see the Core Alpha review.

Where GPS fits

A GPS track is the difference between walking a bearing and walking your own footprints back. The Instinct 3 Solar gives you that with TracBack, plus a strobe on its flashlight, and its solar lens keeps the cell alive for weeks. The trade is a lithium cell instead of a solar cell that never wears out. On the day the phone is dead and the watch is the plan, both approaches work; the Casio works for longer. GPS vs ABC makes the case both ways.

The mistake buyers make

Buying a watch marketed as survival for its strap. A paracord band on a watch with a two-day battery is a strap, not a plan. The watches here earn the word on their power systems and sensors, and their straps are ordinary resin, which is fine.

The decade pick

Every rating quoted above is a static pressure test rather than a depth, and what each one actually permits is set out in watch water resistance explained.