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  • Altimeter, Barometer, Compass (ABC) wrist-top design delivers crucial data for gauging performance, direction and weather
  • Barometric altimeter is accurate to 29,500 feet and displays current elevation and elevation gain/loss;records entire session for later analysis
  • Unique start-from-zero function simplifies altimeter usage by eliminating need to enter a reference altitude
  • Barometer function measures and records air pressure to help predict changing conditions; weather trend indicator shows history over last 3 - 6 hrs.
  • Automatic Alti/Baro mode senses movement, or lack thereof, and seamlessly switches between altimeter and barometer functions
  • Storm alarm feature activates when a rapid drop in air pressure is detected over a 3 hr. period; alarm sounds and flashes to indicate bad weather
  • Digital compass monitors direction; set and follow a bearing using rotating bezel ring, or point top of watch in direction of travel to lock in bearing
  • Sunrise/sunset times ensure you never miss another beautiful dusk or dawn; set regional data and watch will inform you how much daylight remains
  • Snorkelers will appreciate the accurate depth readings to 10m (30 ft.) and underwater buttons
  • The All Black Suunto Core multifunction watch features a mineral crystal, tough plastic case and elastomer strap that withstand rugged outdoor use


View all Suunto Altimeter Watches

REI membership


Best Use Backpacking, Mountaineering
Analog Or Digital Digital
Altimeter Pressure-based
Elevation Scale 1 meter
Ascent/Descent Rate Yes
Elevation Gain/Loss Yes
Altimeter/Barometer Lock Yes
Weather Forecast Yes
User Replaceable Battery Yes
Average Battery Life 1 year
Water-Resistant Depth 30 meters
Illumination Backlight
Date Display Yes
Alarm Yes
Stopwatch Yes
Countdown Timer Yes
Multiple Time Zones Yes
Compass Yes
OS Compatibility No
Construction Plastic
Watch Band Material Elastomer
Dimensions 2 x 2 x 0.625 inches
Face Diameter 1.875 inches
Gender Unisex
Rated 1 out of 5 by from Disappointed Just returned my second Core to my local REI store due to software failure. Bought the first and the display froze in first week. REI immediately replaced it with a new one with no hassle. The second Core went almost to the 2 year warranty coverage and the software again malfunctioned (the time display would suddenly revert to 12:00, necessitating resetting several times daily). I removed and replaced the battery, hoping the software might "reboot" but to no avail. The local REI store offered to replace it with yet another new one, but I took the refund as I have little faith in the product reliability. However, I give REI high marks for customer satisfaction!
Date published: 2012-04-10
Rated 4 out of 5 by from 8 out of 10 ain't bad Very comfortable to wear. The barometer is very accurate, the altimeter is within +or-75 feet. I have not used the depth meter function, but have showered with it, got it good and wet without problems. The alarm is not loud enough for me. The provided manual is a joke, not nearly enough info in order to use all the watch functions. You have to download the detailed manual on the internet. I had to bring the original watch back to REI after it started having display malfunctions. I was in and out with a new watch in 10 minutes, REI staff in Lynnwood were great,no hassles, very easy to work with. The new watch has worked perfectly.
Date published: 2012-04-28
Rated 4 out of 5 by from Agree w/D Dufresne: great watch, poor watchband I like the watch a lot, the band is less impressive. I also had the smaller keeper-strap on my watchband break after 2 year. I wrote to Suunto and they sent me a new one, direct from factory in Romania, no charge. Nice! But here it is, 4 months later and the inside of the watch band has developed deep cracks across it. I expect it to tear all the way through soon. I also wear it daily but have not abused the band and Suunto wants $50 for a new one. Cheap enough I'll buy one, but not happy to get only 2.5 years of use from the band.
Date published: 2015-05-28
Rated 5 out of 5 by from Great performance for the price. 1)How you use the product Paragliding(log entries only/excellent for this purpose) Snowboarding Mountain Biking Hour Lunch count down timer Shallow Dives (Free and SCUBA) Hiking (EXCELLENT for this purpose) Dual Time (Family on the East Coast/I live in AK) 2)Things that are great about it SEE ABOVE. 3)Things that aren't so great about it I have owned a few triple sensor watches (Casio, High Gear, Suunto). The Suunto Core All Black Military is Superior. The one possible improvement would be to have 1' altimeter increments like the High Gear triple sensor watches I have owned. But this watch is superior for ease of use and perfect functionality for my activities.
Date published: 2012-03-31
Rated 1 out of 5 by from Faulty buttons The features and style of the Core were perfect for me. Unfortunately, this watch has fatal quality issues. The start/stop button failed on two different Cores that I used. I owned both watches for one week each before the start/stop button suddenly stopped responding. They were used very lightly--worn around home and office. I hadn't even taken them on any outdoor adventures. Reviews regarding button failures are surprisingly and disappointingly true. It's a shame. The Core is too nice a watch to be undermined by poor reliability.
Date published: 2013-04-24
Rated 5 out of 5 by from Met all my expectations I struggled w. the decision to buy this watch as I was preparing to do a week of hiking via the Yosemite HSCs. The price was just high enough to put this into a category of maybe I can live without it. But living near the coast in southern California, I was concerned about getting in shape and then being able to complete the 50+ mile HSC loop at altitude. So I really wanted to get in some training with significant elevation changes before heading off to the trip this summer. To keep track I wanted some sort of altimeter and was debating the barometric versions like this watch, versus a GPS model. I was also looking for a tool for the actual trip that would help me determine my progress on the trail each day. I really wanted to be able to know, for example, that if I was at 8900' that I had an additional 500' to go to the next camp. I thought a GPS watch would be the best answer to that until I learned that battery life was really an issue with those models. Not to mention that they can get even more expensive. I also was hesitant to commit to strapping a bulky contraption on my wrist as I am pretty heat sensitive (I have MS) and normally don't wear a watch. But after doing a bunch of research and reading other reviews of tons of competing products I picked the Suunto - and could not be happier that I did. Several points are key to my really high level of satisfaction. 1. The watch has a learning curve - because it has so many functions - and I took the time to experiment and use it for dozens of training hikes before heading off to Yosemite. At first I was picking up new features haphazardly - like finding out how to use the logs, reviewing the results of a hike's elevation gained and lost against a time scale - in a graphical display. Pretty cool. and turns out easy to use. 2. Calibration of the altimeter to a reference altitude - is of course the major step required to get accurate results from this watch. And it is really easy. And after using the watch for multiple hikes it has become natural. On the week long Yosemite trip I would calibrate the Core every morning before taking off on the trail - at the same time starting a new log for that day to record the elevation gained and lost. At the end of the hike that day I simply "stopped" the log and would then have a record of that days total elevation gained, lost, Net elevation gained, lost, as well as the chrono record of the times corresponding to those intervals. 3. Having a topo map handy on the trail really complemented the watch for me. You might wonder why did I need the altimeter if I had a topo map - but for me it is simply that without knowing exactly where I was along a stretch of trail, the map was not precise enough to pinpoint my location. With the altimeter and the topo map I could pretty much pin down my location to within a few hundred feet. That was really helpful to me as I needed to find a way to pace myself ('cause of MS) to complete each leg of the loop. As for the watch design, the strap and case is large but I found it to be very comfortable and unobtrusive. It is also rugged. On a training hike I did some scrambling thru heavy brush that was striking the watch and I had though I was going to end up scratching the crystal. When I got through I found that what I thought was a scratch was just debris that wipe off without leaving a trace. Today after using it for a couple of hundred miles over the past 6 months, the watch still looks brand new. Amazing. All in all I could not be happier that I chose this watch. The only minor things that I could possibly think of to improve would be really minor but are, A) the backlight feature works great if you are in a very dark environment, like in your sleeping bag. Then the watch reads clear as day using the backlight. In less dark settings I needed a flashlight to read it - but I think that has something to do with my wearing glasses, and needing more light to make out the dial without them. B) The alarm tone is in a frequency range that is hard for my 56 old ears to hear. Once someone had to point out that my alarm was beeping. I couldn't hear it. But those are both really minor and again - I loved the fact that at the end of the week I was able to relive each day's hike via the logs on the watch. Great for capturing
Date published: 2012-09-14
Rated 3 out of 5 by from Great watch -- abysmal Suunto support My third Suunto watch, bought six months ago the Core is a great looking piece of equipment. Unfortunately, dealing with Suunto support after two proprietary screws in the watch band fell out has been a long exercise in frustration. Their website is impossible to use, calls to their Support center aren't returned, and commitments to send replacement screws aren't met. I'd enjoy owning the watch more if I were able to use it.
Date published: 2013-05-21
Rated 4 out of 5 by from Great A-C watch.... Sunnto has got the ABC thing down for sure. This is a great watch. I'm hoping I haven't been able to properly set up the barometer as the settings never changed even though there were afternoon T-Storms that rolled in everyday while thru hiking the JMT. You need to be diligent and check/change your known altitude on a regular basis (you have to do this with ALL altimeters). The functions and navigation thru the watch are quite easy once you figure out their logic. Instructions are a bit challenging at first. It's a bit large on my arm, but not bulky as the profile is lower. I hope to figure out the barometer issue, the reason it didn't get 5 stars. Aside from that, this watch is great and I highly recommend it.
Date published: 2013-06-29
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Under the "Choose Your Color/Size" there are two options listed: "Black" and "Regular Black". What is the difference?

Asked by: MilSpec
Regular black has a light watch face, and black has a black watch face. You can click on the various photos to see the difference.
Answered by: REIservice
Date published: 2017-01-13

Can you download ski (runs and such) data, the way you could with the S6 ski watch? I'm having a heck of a time figuring this out, via their website or reviews. Seems like pretty basic functionality, replacing my old S6 (dying) watch.

Asked by: pgrey
The Core would not be a good choice to view skiing data. While you can track elevation gain/loss with the altimeter, the Core does not have GPS. You will not be able to track speed and distance. You would also need the watch to be able to connect to Movescount view data after skiing. The Core cannot connect to Movescount. The Suunto Ambit series would be a better choice.
Answered by: REIservice
Date published: 2015-09-20

Can this watch record your movement and then download/transfer to computer?

Asked by: AdmirS
This watch does not feature GPS technology to track movement. Here is a link for GPS sports watches:
Answered by: REIservice
Date published: 2017-02-06

Is the band easy to replace with an aftermarket one?

Asked by: harrisbueller
Yes, the band on the Core can be replaced. Suunto has a wide variety of replacement bands on their website.
Answered by: REIservice
Date published: 2016-06-22
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