Polar A370chat_bubble_outlineFrom real comments

Some users reported the optical heart rate sensor lags during gym workouts, and one commenter directly asked about this lag issue compared to the A360's faster response, suggesting the concern is shared among reviewers.

@melissaann9619

Hi Eric!\nYou say that the A370 has lag with the HR monitor during your gym workout, but do you know if you can get better monitoring (no lag) on the A370 if you're also wearing a chest or arm HR strap/band like the H10 or OH1?launch

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August 12, 2018

@seejaygo

Great review. I've seen some issues on other people's reviews about the heart rate opticals not picking up their HR as quickly as the A360, what's your experience like with that?launch

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July 18, 2017

An analysis in the comments suggested the A370's continuous HR sensor may reduce battery life significantly compared to earlier models, and another long-term A300 owner said they wouldn't upgrade without at least 10 days of battery life, showing this is a lasting concern for the product line.

@markdaniels9507

I've been doing some digging, it seems the A370 has a 10mAh battery size increase (big deal I know, but that's 10%), I would also suspect the internal hardware has had a tick to reduce power consumption to reduce battery life from 2 weeks to 4 days with a constant on HR sensor, it may also have an increase in internal memory, but they don't release any of those specs! Sadly, I think this will become the new normal, because what else can they do to improve last years model to sell you the new model?launch

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October 15, 2017

@juanjohnhoya

Still love my A300. After a year-plus, battery life is 10 days (was originally 22 days). Great for indoor workouts. Won't be getting any other Polar fitness tracker until they come out with one that has a *minimum* battery life of 10 days.launch

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September 7, 2017

Despite advertised continuous heart rate tracking, some users found the sensor only samples roughly every 5 minutes during normal daily activity rather than truly continuously, causing confusion about how the feature actually works.

@cavar59

I dont know about the all day heart rate tracking. Mine doesnt do that. I have the option on in the settings but it still turns the sensor only like every 5 minutes for a while..launch

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August 12, 2017

@kendraorndorff7642

The device says it has 24/7 HR readings, however I have read some other people say it checks it every 5 min, and then when it detects movement (like exercise) it ramps up the rate. Is the every 5 min during normal daily stuff? Not, always on like on the Fitbit Alta HR. I am a bit confused about that information.launch

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July 15, 2017

The A370 lacks built-in GPS, relying on the paired phone's GPS to track distance and running routes. This was confirmed directly by a commenter noting GPS data comes from the phone, not the watch itself.

@Mjoelnir12345

GPS is not on board; instead, the GPS from the phone is used.launch

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August 19, 2017

One long-term A360/A370 user reported having to replace the band three times within about a year, criticizing the silicone quality and durability, and worrying the newer band looks even less durable.

@TutonicKnight

Hey Eric,\nAs an A360 owner (thanks to your review), I'm a bit bummed about the A370 being essentially the same product with a simple software/firmware update... I can make due without those features, but still.\n\nAs for the band, Polar just can't seem to get those right... In the time I've had the product, 1 year and a few months, Ive had to replace the band 3 times. They're just not all that durable and the new band looks even less so. Maybe they wanted to save some money on the silicon?launch

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July 13, 2017

A new owner found step counts inflated by everyday hand movements like cooking and stirring, raising doubts about tracker accuracy for non-walking activity.

@iluvfarisable

bought my A370 today for some reason my steps i feel are way too high i did kitchen work like cooking,stirring and other hand movements it counted as steps,i am abit confused, is my tracker faulty?launch

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November 29, 2018

One user missed having a simple timer and more advanced/flexible alarm options, such as setting different wake times across the week, indicating some software gaps.

@tomaszgrzesik3916

After wearing it for about a month I find it a great fitness band even a running band if You are OK with running with phone in a pocket (i do). Works great with Polar Flow running programms. Things I miss in therms of software is a lack of a simple timer and lack of more advanced alarm options (You can set up a wake up alarm at the same time during a whole week). Apart from this ... it’s great. Polar got a great custommer service.launch

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July 14, 2020

A user struggled to find how to create custom interval workouts in the Flow app that would appear as favorites on the watch, suggesting the workflow isn't intuitive.

@kenschneider4039

Great video! One thing I can't find is how to create the custom workouts in the Flow app that will show up as \"favorites\" on the watch. What am I missing? I want to create an interval cardio session in the gym.launch

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July 2, 2017