Changes

Stryd

2,476 bytes removed, 21:21, 3 October 2017
no edit summary
* '''Pace and Distance'''. My testing has shown that the Stryd is stunningly accurate in its measurement of distance. It's the only [[Footpod]] that is accurate enough that it doesn't require calibration, something that greatly improves its usability. If you look at [[GPS Accuracy| my testing of distance accuracy]] you'll see that the Stryd is right at the top of the chart, and is far more accurate than any GPS device I've tested. This accuracy is also reflected in its measurement of current running pace. I think that this feature alone makes the Stryd good value for money. (Stryd doesn't use or provide GPS data, it uses accelerometers. Depending on the watch, the data from Stryd can be combined with the Watch's GPS data so that Stryd gives distance and pace, and the watch's GPS can be used for navigation.)
* '''Elevation. '''I suspect that Stryd is providing remarkably accurate elevation information. Due to limitations on data export I've not been able to perform any statistical evaluation, but anecdotally the data looks really good. Obviously, the Stryd cannot provide any absolute altitude information, but it does seem to be able to measure relative changes far better than either GPS or barometric altimeter's. At the moment, this information is not as directly usable as I'd like, as it's only available in real time via their, not their watch integration. If you use the Connect IQ data field, it will record elevation as a custom data track, and it is possible to copy this to the standard elevation track using plugins to Sport Tracks.
* '''Running Power'''. As I talk about in my page on [[Running Power Meters]], I believe that they are not power meters at all. Like other running power meters, Stryd does not actually measure running power, but attempts to estimate what the power would be based on the things it can measure. My assumption is that it is mostly using pace and elevation change, possibly along with [[Cadence]] or Ground Contact Time. As discussed in the section below on the testing running power, I have found that the latest Stryd firmware gives a good estimate of relative intensity. I've been able to use Stryd to more effectively pace myself on hilly runs, as well as giving additional insight into [[High Intensity Interval Training]].
* '''Form Power.''' Stryd describing this metric as the "running in place power", but it's unclear what that really means more if it has any value. They suggest that a decrease in this value represents improved [[Running Economy]], but there is nothing to back that up.
* '''Cadence'''. Cadence is fairly trivial to measure for even a far simpler [[Footpod]], so Stryd nails this easily. It's arguably one of the most important running metrics, so you should pay attention to this. There are far cheaper ways of measuring cadence (like [[MilestonePod]]) but it's nice to have this included in the Stryd.
** '''Footpod with GPS'''. This is the ideal mode; you have your watch get all distance and pace data from Stryd, while still recording a GPS track. This will allow you to show where you've run, enable any navigation like back to start or breadcrumbs, and for things like Strava segments.
** '''Footpod without GPS'''. If your watch doesn't support the above "Footpod with GPS" mode, you have to set it to running indoors or treadmill mode where you lose all the GPS data. This works, but may not be what you want. (For watches that support Connect IQ, there is the option of using the "Stryd Race" app which will record GPS data along with Stryd data, but the features are a little lacking at the moment.)
* '''Footpod with Power in Cadence'''. This is similar Note that Stryd used to be able to transmit the above scenario, but Stryd will put power into estimate in the Cadence cadence field. That gives you access to its power estimate on a wide range of watches, but there are two significant downsides. Firstly, you don't get Cadence information, which is arguably rather more important than an estimate of power unless you're really confident that your cadence is good. Secondly, because of the Bluetooth protocol, the Cadence field this feature has a range of 0-255, and power estimates can be quite a bit largerbeen removed. Therefore, stride divides the actual power by 10, so 210 watts will appear as 21 steps/minute. Therefore, you lose a little bit of granularity, though in practice I don't think that's a huge deal. This is only an issue for Bluetooth watches; Ant+ works fine. <span style='color:#FF0000'>Important: Stryd have stated they are removing this feature!</span>
* '''Cycling Power Meter'''. Stryd can send the same data that a cycling power meter would, so any watch that supports the cycling power meter will support stride in the same way. This gives some good support for power, and in indoor cycling mode you should be able to get pace, distance, and cadence data from the stride as well. There are a few annoyances with this approach, the biggest one being that you get your speed in MPH or KPH rather than min/mile or min/Km which would take some getting used to if you're a runner that used to thinking in terms of pace rather than speed. The other annoyance is that all of your data files will be considered as cycling rather than running, which could confuse your training log.
* '''Connect IQ'''. The advantages of Garmin's [[Connect IQ]] are shown in the ability for Stryd to add their sensor to any Garmin watch that supports Connect IQ. If you install the Stryd Connect IQ data field, it will show the power estimate, as well as recording all of the Stryd data into the fit file. Using this data field does not stop you using the Stryd as a normal Footpod at the same time. Because the Connect IQ only gives you the power, you still have two modes of Footpod integration, giving you two modes:
** '''Connect IQ + Footpod with GPS'''. The perfect solution; you get all the Stryd data, the distance/pace accuracy, and GPS for navigation.
** '''Connect IQ + Footpod without GPS'''. On the lower end Connect IQ enabled watches you have to set them to indoor/treadmill mode, so you get all the Stryd data, the distance/pace accuracy, but you don't have any GPS data.
* '''Suunto Spartan'''. The [[Suunto Spartan Ultra]] has explicit support for the Stryd, which is nice, but you can't use the Stryd for both power and distance/pace at the same time (except for "power in cadence".) However, the good news is that you get pace & distance from Stryd while also recording the GPS track. This is effectively the same as the "Footpod with GPS" mode.
Here's another way of looking at the options. I've ranked them in the order I'd use them, which is accurate pace & distance is the most important thing, then having GPS tracks for navigation, then having the power estimate, and lastly having the extra Stryd data.
{{:Stryd-Modes-table}}
Stryd supports both Bluetooth and Ant+, and both work well. Bluetooth has the limitation that you can only have one receiver talking to Stryd at a time, so you can't have it linked to two different watches simultaneously, or to a watch and your smart phone at the same time. (I have had occasions where the Stryd has stayed linked to my smart phone, so I've had to turn off Bluetooth on my phone to allow Stryd to link to a watch.) With Ant+ you can have as many watches linked simultaneously, and it's possible to have Stryd linked to both one Bluetooth watch and several Ant+ watches at the same time. If you're using Garmin [[Connect IQ]], you can have Stryd work as both a standard Footpod and connected via the Connect IQ data field.
=The App=
The Stryd app is rather limited, and I mostly use it just to sync data with the web site. However, a key feature is to configure Stryd to transmit the power estimate in the Footpod's Cadence field. This feature is not currently supported in the Android version of the app!
<gallery widths=300px heights=300px class="center">
File:Stryd App (3).png|The home page of the app shows you the recent runs and the "start training" button to run with the app.
File:Stryd App (2).png|When running on a treadmill you can tell the app how fast your running and what the incline is. I haven't been able to work out what this is for, so please let me know if you find out.
File:Stryd App (4).png|There's a calendar view to pick a run for a given day.
File:Stryd App (6).png|The setting screen allows you to set the Stryd to transmit power as Cadence. Due to limitations on the cadence field, you'll get power divided by 100, so 215 watts will be 22.
</gallery>
=The Web Site=
</gallery>
=Connect IQ Data Field=
The Connect IQ Data Field for Stryd will show power on a Connect IQ compatible Garmin watch. This doesn't interfere with using Stryd as the footpod at the same time, which is important. The Data Field will record not only power, but the other metrics like Ground Contact Time and the display is configurable to show power averaged over various time periods, lap average, or overall power for the run. Of course, you can only have one field configured, so you can't see both current power and lap average for instance. You also don't get alerts based on power value. If you put power into the cadence field you can do far more, adding current, lap average, alerts, etc.
[[File:Stryd ConnectIQ.png|center|thumb|300px|The configuration of the Stryd data field from within the Mobile App (you can configure it via the PC Garmin Connect app as well.]]
=Data Analysis=
** If you're pretending this is a cycling power meter, then everything should work just as it would for cycling power, but of course it looks like a cycling workout.
** If you're using the Garmin [[Connect IQ]] data field, then you'll need to have an application that supports importing customer data. I found that Golden Cheetah worked fine, as does SportTracks with the Custom Data Tracks plugin and the Garmin FIT plugin.
** If you're getting power as Cadence, then most applications should be able to handle that, but obviously you'll have it in the cadence field and it will be 10x lower (210w will be 21 steps/minute.)
* '''Cadence'''. Cadence is well supported by pretty much any analysis application, unless of course, your using the cadence field for power. Note that the Garmin [[Connect IQ]] data field will record the cadence value from the Footpod in addition to any other Cadence device.
* '''Elevation. '''I've found it tough to get elevation data into an analysis application. I'll update you if I find a good way of doing this.
* [[Polar V800]], [[Polar M400]], [[Polar M430]]
** Pair as a normal footpod. Settings -> General Settings -> Pair and Sync -> Pair Other Device -> select Stryd. Then go to Settings -> Sports profiles -> Running -> Stride Sensor. Calibration=manual, factor = 1.0, sensor for speed=Stride Sensor.
** '''Warning: The V800 does not work properly with both Stryd and a heart rate monitor. This looks like a bug that hopefully Polar will fix soon'''. There is some evidence that it only impacts older versions of the V800 firmware, but that has not been confirmed.
** Remember this is using Bluetooth, so if you have a problem it might be because the Stryd is still linked to your phone.
** You can set the M400/M430/V800 to give distance and pace from footpod, while recording GPS tracks. The menu just says "speed source" but it sets distance as well. The menu talks about "stride sensor" as that's what the Polar footpod is called.
** There's less smoothing of pace in these watches compared with others, so the display is nicely responsive. (I know from alpha testing other devices that the M400 actually has pretty much no smoothing at all.)
** For the M400/M430 you have to choose between cadence and power display, and as this is Bluetooth, you get 210 watts displayed as a cadence of 21. This feature may get removed in the future. There's no cycling power support in the M400/M430, or other native power pod support.
** For the V800 there is native support for Stryd as a power device. You don't need to pair Stryd as two separate devices (foot pod & power pod), just pair once.
* [[Garmin 920XT]], [[Garmin Vivoactive]], [[Garmin Vivoactive HR]], [[Garmin 235]]
** Pair as a normal footpod. Settings -> sensors -> add new -> footpod. Under the sensor, set speed=always, distance=always, calibration -> auto calibrate disabled. (There's a full description of the process for the F5X on the review page.)
** You can set the speed and distance to always come from the footpod so you still get GPS. This is obviously important for navigation and the mapping features of the 5X and Epix are key reasons for buying those watches.
** If you want to see power, you have to set the Stryd to use "Power In Cadence" on the iOS app. This feature is not supported in the android app, and Stryd have said they will remove the feature in the future. There is also the option of using the Epix in cycling mode to get power from Stryd.
** I found some smoothing and rounding of the pace data, but not much.
** Occasionally I'll find the watch won't detect the Stryd at the start of the run. In those situations, I have to go into settings, sensors, Stryd, and select "connect", which time the watch connects fine and the connection persists when I go back to start the activity.
** Pair as a normal footpod.
** Set the "Foot Pod Speed" to "Always On". I expected this to just provided pace from Stryd, but it actually does distance as well. The GPS track is recorded normally and navigation functions are enabled.
** You have to choose between cadence and power display. (Power-in-cadence requires the iOS Stryd app and this feature may be removed in the future.) * [[Suunto Ambit3]] (all models), [[Suunto Ambit2| Suunto Ambit2 R]]
** Pair as a normal footpod (don't pair as a bike power pod if you're using a higher end Ambit).
** You have to ensure that the sports mode you're using is set to use a footpod. If you don't see the Ambit3 search for a footpod when you start the exercise, you need to change the configuration on the Suunto web site. (I've tested the Ambit3 Run/Ambit2 R versions.)
** With the Ambit3, you need to disable auto-calibration, and the menu is a little hidden. Pair your Stryd, then hit the start button, select "exercise", then choose an exercise that uses a footpod. Ensure that the Ambit3 has found your Stryd, then press and hold the Next button to bring up the Activate menu. If you have a footpod active, there will be an option for disabling auto calibration.
** If a footpod is found, the Ambit3 & Ambit2 will get pace and distance from the footpod and override the GPS data. (This means you can use the Ambit2/3 in the lowest GPS accuracy mode to extend battery life while getting accurate pace & distance from Stryd.)
** You have to choose between cadence and power display. For the Ambit3 (Bluetooth), you get 210 watts displayed as a cadence of 21. The Ambit2 (Ant+) is rather unusual in that it will halve the value of the power, so 210 watts will be displayed as 105. (Power-in-cadence requires the iOS Stryd app and this feature may be removed in the future.)** If you follow the Stryd instructions for the Ambit3 you'll get power but won't get pace/distance from Stryd. The only way to get power is from "power-in-cadence" as noted above.
** The Ambit3 & Ambit2 both do quite a bit of smoothing of pace information, so it's not quite as quick to respond as other some other watches.
** With the higher end Ambit 2/3 (above "Run" models) you can use the Stryd in bike mode and get the power estimate that way. However, I strongly believe that accurate pace and distance is vastly more useful than an estimate of power, so even the higher end watches should be used in run mode with power in cadence.
* Ambit2/Ambit2 Sport
** These two watches can support Stryd as both power pod and foot pod at the same time. (You can't do this with the higher end Ambit3 watches as the Bluetooth protocol only allows one connection.)
** If a footpod is found, the Ambit2 will get pace and distance from the footpod and override the GPS data. As above, you can use the Ambit2 in the lowest GPS accuracy mode to extend battery life while getting accurate pace & distance from Stryd.
** The Ambit2 does quite a bit of smoothing of pace information, so it's not quite as quick to respond as other some other watches.
* [[Suunto Spartan Ultra]], [[Suunto Spartan Trainer]]** Sadly, Suunto have updated the Spartan firmware to automatically calibrate a footpod against GPS every time, with no manual calibration or way of disabling the calibration. This means you can't get pace/distance information from Stryd. The best you can do is to use Stryd's power estimate. ** To pair, scroll up to settings, select connectivity, select pair sensor, select Pair Foot Power POD, pair to Stryd. Do not pair as a footpod. ** Ensure you are using a sports mode that has the footpod power pod enabled. ** If you want to see power, you have to set the Stryd to use "Power In Cadence" on the iOS app. This feature is not supported in the android app, and Stryd have said they will remove the feature in the future.** Like the other Suunto devices, there's quite a bit of dampening that reduces responsivenessfootpod disabled.
* [[Garmin 620]], [[Garmin 225]], [[Garmin 610]], [[Garmin 910XT]], [[Garmin 310XT]]
** Pair Stryd as a normal footpod.
** You can't get distance from Stryd with GPS active, which means you have to run in indoor/treadmill mode.
** You have to choose between cadence and power display. (Power-in-cadence requires the iOS Stryd app and this feature may be removed in the future.)* [[Leikr]]. I could not get the Stryd to work with the Leikr.
* Smartphone apps. The Strava app won't take pace/distance from Stryd.