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{{DISPLAYTITLE:Polar V800 Review}}
The {{Polar V800}} is elegant and has outstanding [[GPS Accuracy]], but and with time its price has dropped and its functionality has steadily improved as Polar released newer versions of the firmware, the app, and their web site. For a simple evaluation of a GPS watch, I look at how well itcan answer some basic questions:* '''s pricy How far did I run?''' This is the most basic question, and the V800 has less functionality outstanding GPS accuracy. If you really want to know how far you've run, this is the best option other than getting a [[Stryd]] footpod, which the V800 supports well. * '''How fast am I running?''' Knowing how fast you're running can be a nice to know, or it can be vital for your training or race performance. Because of the nature of GPS, watches that rely on GPS signal alone tend to have serious problems with current pace. Even with the outstanding GPS accuracy, the current pace can be a long way out. This is mostly due to the nature of GPS accuracy errors compared with its competitorsFootpod errors. The limited V800 has great support for the [[CadenceStryd]] footpod, making it a great choice. * '''Where am I? '''The V800 has limited navigation features. ** '''Course Outline'''. This is an outline of a particular concernroute that can be downloaded. I've found this useful during ultras or in unfamiliar cities where I've needed to know where to go. However, there's no "Track Outline" showing where you've run (breadcrumb trail).** '''Back To Start'''. This is a simple arrow point to your starting point, so it won't help you backtrack. ** '''Back To Waypoint'''. You can mark a location and when compared use the arrow to point to it later. Again, this is a simple "as the crow flies" pointer. ** '''GPS "Compass"'''. There's no magnetic compass so you have to be moving for the GPS to give you a sense of direction. * '''What's my cadence? '''[[Cadence]]''' '''is one of the most critical and often overlooked aspects of running. If you get your Cadence right, many other watches, things naturally fall into place. As of Feb 2016 the V800 seems too expensivesupports Cadence measurement from the internal accelerometer and from Stryd, but no Cadence alerts.[[File:Polar V800.jpg|nonecenter|thumb|200px|The {{Polar V800}}.]] The V800 is rated at 13 hours, but I managed to get nearly 24 hours in testing. To get that life, I didn't press buttons or have Bluetooth connected, but that's still an impressive figure. It also has a rated 50 hour battery life if you activate extended mode which reduces the GPS accuracy. In addition the V800 can be charge on the run. See [[Best Running Watch#Watches for Ultrarunning| Watches for Ultrarunning]] for more details.{{BuyAmazon|AZID=B00JSO9UD2|AZN=Polar V800}}
=Polar V800 Pros=
* The Polar V800 has considerably better [[GPS Accuracy]] than any other GPS watch I've tested. It's better than some of the older devices that have surprisingly good GPS Accuracy, and it's far better than most of the newer devices that have mediocre to appalling accuracy. (Note that even the V800 does not have sufficient GPS accuracy to give a good display of current pace.)
** If you tap the V800 screen, that acts like an extra button. You can set the tap to take a lap, turn on the backlight or a few other things. (This tap does not seem to be a touchscreen and I found you have to whack the V800 pretty hard, even on the lightest setting. I think Polar is using the internal accelerometer to detect the impact.)
** If you're wearing the heart rate monitor strap, you can touch the V800 to the transmitter for another action, such as activating the backlight.
* Polar updated the V800 firmware to have great support of the [[Stryd]] footpod. It supports Stryd as a native power meter, which allows you to see not only the current power, but also average power, lap average power, and maximum power. You get the outstanding distance/pace accuracy of Stryd, along with the power estimate.
* The V800 supports [[Cadence]] from it's an internal accelerometer, something that was added in Feb 2016. You can also get a more accurate reading of Cadence via [[Stryd]], but other [[Footpod]] options are currently quite limited (see below). See [[Cadence]] for details of the internal accelerometer accuracy.
* The V800 provides more information when you press the lap button than other watches, as well as far more useful data at the end of the run.
* Like the [[Suunto Ambit2 R]] and [[Suunto Ambit3]], the V800 can be configured via the website, which is easier than fiddling with the watch itself. Most of the options can be also set on the watch, which means you're not stuck if you're away from the Internet.* With GPS recording set normally the battery life is 13 hours which is adequate for most runners, and I managed to get nearly 24 hours in my testing. However , ultrarunners may need to use the power save mode that extend the battery life up to 50 hours(I got just over 50 in my tests). While the documentation claims that the power save mode records GPS location once per minute, I've found that in practice it's a little more random than that (see belowfor details).<br/>[[File:Polar The V800 Power Save.jpg|none|thumb|500px|The GPS track from can be charged on the Polar V800 in power save mode. Each blue dot is a GPS point from an out and back run that, with the route covered twice at by plugging it into a steady paceportable USB battery. You can see areas I have had instances where the V800 is recording the GPS location quite frequentlywould reset on disconnect, and other times but I suspect this might be an issue with the frequency is quite lowbattery overall.]]
* The V800 provides some interesting analysis of your training. This is similar to the [[Firstbeat| Firstbeat Training Effect]] used by Garmin and Suunto, which is a simple number between 1.0 and 5.0. The V800 provides more detailed analysis with a text description of its evaluation. It has 17 different classifications including things like "maximum training", "tempo training", or "steady-state training". Each classification has a little congratulatory message associated with it that explains the benefit of that particular type of training. This is a nice feature, though it can be a little simplistic and it was far less accurate for me than the [[Firstbeat]] approach. If you're prepared to take it with a pinch of salt, it's a nice feature.
* The V800 also provides some guidance on your recovery. Again this is a little more sophisticated than the Garmin and Suunto approach which give the number of hours until you are recovered.
** There are jumping tests that use the Polar Stride Sensor to measure explosive strength.
* The V800 includes a barometric altimeter, which is helpful given that GPS is notoriously poor at estimating altitude.
* The V800 will only upload the data to the Polar website, but Polar has introduced the ability to export workouts in TCX format data. This is not as good as some other devices, but it's workable.
* You can use the V800 as a simple activity monitor, something that's common to many new sports watches. However, when the V800 acts as an activity monitor it only has only an internal accelerometer, which provides poor accuracy. If you need an activity monitor, I'd recommend the [[Basis Activity Tracker]] which has sensors for heart rate, skin temperature and perspiration.
* While the polar website at the release of V800 was more of an unfinished beta release rather than a complete solution, it has improved with time. It's still not up to the standard of the Garmin web site, but I quite like it. Below is the analysis of a workout using [[Stryd]] power. <br/> [[File:Polar V800 Stryd.jpg|center|thumb|300px|]]
* The V800 includes a thermometer, which I rather like, though obviously the accuracy suffers because it's attached to your arm.
* You can use a Smartphone to upload your workouts to the Polar web site via Bluetooth.
=Polar V800 Cons=
* One of the big downsides to the V800 is its cost, which is far more expensive than the watches that I highly recommend. Given the V800's functionality, though it's too expensive to be "highly recommended" at this price point.* The second problem with the V800 is its support been out long enough for [[Cadence]]. Even though the V800 has an internal accelerometer, this is not used price to display cadence. Cadence is only available with a Bluetooth Footpod, and the options here are currently quite limited (see below). Compounding the lack of Cadence support, the V800 has no way of displaying your current pace from the [[Footpod]] while using GPS for overall distance and course. If you select "speed from Footpod" the Footpod is used for distance as wellhave dropped dramatically.
* The V800 uses Bluetooth sensors rather than the more common Ant+, which has some practical implications.
** For [[Heart Rate Monitor]], the Polar H7 works well.
** The options for a [[Footpod]] are more limited. There is the [http://www.amazon.com/Polar-Stride-Sensor-Bluetooth-Smart/dp/B00CCASIMS Polar Stride Sensor] but this is enormous and heavy compared with the Garmin equivalent. It actually weighs about 1oz/30g, which I believe is unacceptable. There are other Bluetooth Footpods on the market, but none of these function fully with the V800(see below).
** An Ant+ sensor will broadcast data to any device that's listening, so you could have two watches both receiving information. Bluetooth sensors are currently limited to sending data to a single paired listening device. So if you're wearing the Polar H7 Heart Rate Monitor, the data can go either to the V800 or to your iPhone, not both. (The V800 will rebroadcast the signals, but currently only the Polar App can receive them. Later revisions of the Bluetooth specification will allow for broadcasting of data.)
* The V800 will only upload the data to the Polar website. Polar has introduced to the export of TCX format data, but this export is incomplete support for a [[Footpod]] (no lapsother than [[Stryd]])is more limited than I'd like. You can work around this by using the open source projects See [[https://github.com/pcolby/bipolar BipolarFootpod] and [https://github.com/profanum429/v800_downloader V800_downloader], but this is a far cry from the open approach that Garmin has takenfor details.* The V800 uses some visual tricks to appear smaller than it is. If you look at the picture below, the watch body appears to be the silvered area, which is quite small. However, the first bit of the watch strap is really part of the watch body, with the strap starting much further out. The only problem is the watch body is inflexible, so on small wrists like mine it does not sit well, and I suspect it will dig into those with particularly large wrists. (I have no problem with watches that appear to be bigger, like the [[Garmin 310XT]], but I have to wear the V800 over a sweat band.)<br/>[[File:V800 Size.jpg|none|thumb|300px]]
* A minor irritation with the otherwise excellent user interface is that the beeps and vibration are extremely weak and ineffectual.
* The V800 will predict your [[VO2max|V̇O<sub>2</sub>max]], but unlike the Garmin devices that used [[Firstbeat]] technology and give a good result, the V800 is wildly wrong for me. Obviously this is a sample of one and Your Mileage May Vary.
* Another irritation is that the V800 will sometimes ask you a question when you press the start button, which is not the ideal time.
* I have had some issues with the battery on my V800. When I allowed to fully discharge by not using it for weeks I had problems getting it to take or hold a charge. The V800 would claim it was fully charged, but then give a low battery warning almost immediately after disconnecting from the power. Leaving it on charge for a few days seemed to resolve the issue.
=What's Missing=
While I don't consider these missing features as 'cons', it's worth understanding the features that are missing compared with other watches.
* '''Navigation.''' The navigation Navigation capabilities are useful if there is a risk of getting lost, and the better watches will provide a display showing where you have run. I've made good use of this feature when running in an unfamiliar city, or when running remote trails. There is The V800 has a rudimentary "back to start" functionality that gives you an arrow pointing back, but that's a poor substitute.
* '''Downloadable Apps'''. Smart watches have got is used to the idea of a device that can be extended with new functionality, and this concept is being introduced to running watches.
* '''Graphs'''. Instead of simply displaying a numeric value for things like heart rate, some watches will display a graph of the value over time, giving you a sense of how things are progressing.
* '''Running Dynamics'''. Some of the newer Garmin watches can show and record Vertical Oscillation (VO) and Ground Contact Time (GCT).
* '''Alerts'''. Some watches will alert you when a metric is out of range. The alert for [[Cadence]] is really useful and one of my favorite features.
=GPS Accuracy=The V800 has great GPS accuracy, the best of any device I've test so far. The V800 uses the SiRF chipset, which seems to have the capacity for great accuracy. {| class="wikitable" |- valign="top"|[[File:BridgePolar V800.jpg|none|thumb|x300px|The Polar V800 is one of the most accurate devices I've tested, and you can see that the majority of the tracks are green indicating good accuracy. Notice the problems the V800 is having at the bridge. Rather strangely the lap markers are far more spread out than I would have expected on a device this accurate. ]]|- valign="top"|[[File:AccuracyPolar V800.jpg|none|thumb|x300px|This is a detailed image of a small zigzag in my course, that shows up how well a device is tracking. The Polar V800 follows this small zigzag quite well. The overwhelming majority of the lines are green indicating a good accuracy, even though the lap markers are quite spread out. ]]|- valign="top"|[[File:ZigZagPolar V800.jpg|none|thumb|x300px|Here is the zigzag with the tracks color-coded for direction, with green coming from the right, blue from the left. Typically GPS watches record tracks that have the green lines shifted slightly down and to the left, blue up and to the right. As you would expect from a device as accurate as the V 800, the tracks are close together and follow the line of the zigzag nicely.]]|- valign="top"|[[File:Polar V800 Power Save.jpg|none|thumb|x300px|The GPS track from the Polar V800 in power save mode. Each blue dot is a GPS point from an out and back run that, with the route covered twice at a steady pace. You can see areas where the V800 is recording the GPS location quite frequently, and other times the frequency is quite low.]]|}=Visual Comparison={BuyAmazon|AZIDclass=B00JSO9UD2"wikitable"|AZN- valign="top"|[[File:Polar V800-top.JPG|none|thumb|150px|Polar V800 top]]|[[File:Polar V800-side.JPG|none|thumb|150px|Polar V800}side]]|[[File:Polar M400-top.JPG|none|thumb|150px|Polar M400 top]]|[[File:Polar M400-side.JPG|none|thumb|150px|Polar M400 side]]|- valign="top"|[[File:Suunto Ambit3-top.JPG|none|thumb|150px|Suunto Ambit3 top]]|[[File:Suunto Ambit3-side.JPG|none|thumb|150px|Suunto Ambit3 side]]|[[File:Suunto Ambit2-top.JPG|none|thumb|150px|Suunto Ambit2 top]]|[[File:Suunto Ambit2-side.JPG|none|thumb|150px|Suunto Ambit2 side]]|- valign="top"|[[File:TomTom Cardio Runner-top.JPG|none|thumb|150px|TomTom Cardio Runner top]]|[[File:TomTom Cardio Runner-side.JPG|none|thumb|150px|TomTom Cardio Runner side]]|[[File:Garmin Epix-top.JPG|none|thumb|150px|Garmin Epix top]]|[[File:Garmin Epix-side.JPG|none|thumb|150px|Garmin Epix side]]|- valign="top"|[[File:Garmin 920XT-top.JPG|none|thumb|150px|Garmin 920XT top]]|[[File:Garmin 920XT-side.JPG|none|thumb|150px|Garmin 920XT side]]|[[File:Garmin 620-top.JPG|none|thumb|150px|Garmin 620 top]]|[[File:Garmin 620-side.JPG|none|thumb|150px|Garmin 620 side]]|- valign="top"|[[File:Leikr 1-top.JPG|none|thumb|150px|Leikr 1 top]]|[[File:Leikr 1-side.JPG|none|thumb|150px|Leikr 1 side]]|}
=Comparison Table=
{{:Best Running Watch-table}}
