It is exactly an comfort, i mean ergonomic. I recommend for people who do not invest a lot of money. I have always used in personal sports disciplines, and i am waiting the opportunity to use it practicing floorball. I know i have to be very careful un this case because is possible suffer an accident in this contact discipline. I am very satisfied with my buying.

Strap stays in place, heart rate seems accurate. Calorie counter takes in to consideration one’s weight and age to give good readings.

This product was a little confusing at first. I wish the instructions said you never had to hit the search button on the chest strap. I did because the strap didn’t want to connect to the watch. After a little research, i had the watch and strap ‘find’ each other and now it works perfect. Exactly what i wanted it to do: heart rate and calories burned.

I’m not looking for anything fancy – heart rate, calories burned, and a workout chronograph. The description of this watch exactly fit the bill. I’m happy to say that it was easy to program & caught my heart rate fast. Unfortunately, whatever algorithm they use for calorie count is way off. As an average heart rate goes up, the person is burning more calories/minute. Whatever equation they’re using shows you burning fewer calories as your heart rate goes up. I’m bummed, because everything else about this hrm was great. It even transmitted hr to the keiser bike that my gym uses. But i want those calories & they have to make sense.

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I received my 630 several days ago and have used it twice since then. It was easy to program, the signal is strong and consistent, and i like the display very much. In those regards, i think it’s great. Still, i’m tempted to return it because of the terrible fit between the belt ends and the transmitter. My two previous belts (other brands) slipped easily into the slots in the transmitter, but with the 630, the belt end and the transmitter slot have slightly different shapes that prevent them from fitting together. When i tried to force them together, i was concerned that i’d tear the rubber end of the transmitter, so i gave up and now simply hook the two together. I’ll probably live with it this way because of the features i like. But it’s either poor design, or i suppose it’s possible that i received a belt intended for a different sportline hrm. Either way, it’s inexcusable. I’d be interested to know if anyone else has the same problem.

Not an amazing product, not the best looking either, doesn’t have tons of extra functions, but it does what it’s supposed to do. Very easy to use, responds quickly.

This heart rate monitor has worked flawlessly for me for a couple of weeks. It seems to give an accurate readout and can even be read by some of the exercise machines i use at the y (2 out of 3). The readout on the exercise machines agrees with the readout on the watch. I can only vouch for its function up to a heart rate of 167 since that is as fast as my old ticker will still go. The one thing that could use some improvement is the display on the watch. It uses a tech that i believe was first invented in the 70’s called dot matrix. Not the most legible, but at least the most important data, the heart rate, is the largest part of the display and can be read even with my old eyes if there is good light. The small stopwatch display is tough though. The only problem i had was that before it would work i had to go through the ‘coding’ procedure in the manual which pairs the watch and chest strap to each other. According to the manual this was supposed to have already been done.

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Here are the specifications for the Sportline Cardio 660 Women’s Monitor:

  • This refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, and may arrive in a generic box

Reviews from purchasers :

  • accurate but needs a better display to get 5 stars
  • Great except for calorie count
  • Poor belt design