This is an excellent heart rate monitor with the standard features (max, min alarms, time in and out of zone etc...) its also an excellent stop watch. I download the data using Suunto's Activity Monitor software - which allows you to export the data to Excel! Plotting HR versus altitude is very useful for training.

I only have a few minor complaints: (1) Battery life is terrible - this thing (and the chest strap) eat up 4 batteries a year. (2) When battery life starts to fade interference is a big issue - fortunately the data can be edited so you can remove "spikes". (3) PC interface is serial cable - should be USB. (4) Suunto software is veru buggy and crashes all the time (no data lost fortunately) 4 stars

The features on this watch are fantastic. It is an excellent heart rate monitor, compass, alitmeter, and barometer. However the serial PC link is terrible and stops working frequently. I have had my X6HR for one month and it no longer connects to the PC (the main reason I bought this watch in the first place). For some reason, Suunto still uses a serial connection, claiming on their website that this is the latest technology (more like the cheapest). If you plan to use this watch for its PC data transfer function, be very cautious and keep an eye on the warranty. Also the Suunto Activity Manager software is terrible and crashes frequently. I haven't lost any data (yet) but its very annoying. 2 stars

Great multifunction watch. Have it since 2003.

You can change the battery yourself!

Upload to PC works fine, but companion software does not allow for some analyses which I would like to do, such as integrate number of heart beats over the work out.

Also, a bit ckunky for everyday use.

Today would go for the T6 4 stars

This is a nice hiking companion but it is not a training tool. You do not have any information regarding calorie or TE after the exercise. For training go to T6, T4 or T3. For hiking with PC cabality this is a good option. The Polar S625 can do a better work for hiking with additional trainign capabilities. 3 stars

The X6HR has a great range of functions. However, the user interface and reliability of the product need serious work before its steep pricetag can be justified.

- Bezel buttons give no positive feedback, so you need to look closely at the screen to confirm button presses.

- The HRM function seems both unreliable. Heart rate occasionally drops out or spikes to double for no reason. I've parallel tested with a $30 HRM, which seems more reliable.

- The compass function is unbelievably poorly designed. Instead of drawing a compass on the face, or indicating N/S/E/W points around the bezel, the watch tells you the number of degrees you are facing, or prints N, NW, W, SE, etc on the screen. This is a completely counterintuitive way of displaying the information.

- The PC connection software looks like it was written in the 1990s- provides little functionality and poor usability.

This watch had great promise... but it has proven very disappointing in design. 3 stars