Great comparison by DC here. But I note there is still a fair bit of confusion comments, about the source of the "choppy" video seen on the FulGaz ride screen. Unless you have some problems with your local wifi, or slow internet, the shudder in the video is ENTIRELY due to DC's use of Reactive mode in his comparison (which he notes several times). He did this to force FG to adjust the speed of the video, to the speed he is riding at, for this comparison. This setting works, but it means the app is constantly re-processing the video to match your speed, since it is unlikely that any of us will exactly match the speed of the original filmer (some will be faster than you, some slower). However IF you select Steady mode in FG, the video plays completely smoothly since it is no longer being re-processed in real time. What is often misunderstood is the belief that you lose the "reality" in Steady Mode - you don't. Your power is exactly shown as you put it down, your speed shown is correct, the only thing missing, is that your time over the course will be the same as the original rider's time, since the movie was not sped up or slowed down. So if you just want a good workout, with smooth top quality 4K video, stay in Steady mode in FulGaz - you can go as hard or slow as you like, the workout is real. If you're training for real world times on an actual route that FG has, like Alpe or Hawaii tri course, then yes, you will need to use Reactive mode, which can never play as smoothly because of the processing needed. The choice is always yours.

Thank you for the ride. I’ve been on Fulgaz since early on and just enjoy the actual film footage. I’m more focused on HR than anything else due to heart issues so I can’t go as hard as I would like to. Great comparison. You truly are genuine in your reviews. Keep it up!

That was really great! I'm just awaiting my smart trainer delivery (well any day), so pretty stoked

I use FulGaz now about 3 years and like the different rides and it’s very realistic. I’ve recorded some rides for them (Flanders). Never got choppy video. Super app!!

This was very interesting . Thanks for making the video!

WOW, that's great, keep up the good work Dude

I love FulGaz for the good video quality and the option to ride the real world in different countries, at my house. I ride Zwift sometimes, as a group experience. I do not think that you can really compare the two.

300 W would be like Z4 for me with heart rate through the roof after 5 minutes. You're a beast!

GREAT set up!!

I don't understand why the FulGaz video is so choppy. My FTP is way below Ray's and, creeping up 10-11% gradients in FulGaz on my Kickr Core, the video on my iPad is nothing like as broken up as that. Granted, I haven't done Alpe d'Huez but I've done shorter climbs at the same sort of gradient. FulGaz suits me very well so don't dismiss it because of the quality of Ray's video - try it for yourself. To me it's the nearest I've found to cycling outside and the figures on similar rides compare closely with outdoor riding. Enjoyed the video, though! Thanks, Ray.

Have someone done a comparison like this between Zwift/Fulgaz and Rouvy? It would be interesting, especially the Fulgaz vs Rouvy comparison, to see the difference in the video quality and overall reactions of the apps

Ray, thanks for doing this comparison. I am big fan of FulGaz, having used it for years to ride with a buddy who no longer goes out on the road. I tried Zwift a few times but just didn't get it. I think the side by side, split screen test is interesting but perhaps not a realistic way to compare the two. Maybe doing the same ride back to back on each app, and then comparing the metrics and also giving your subjective impressions would be good? Thanks, Matt

Can't wait to see you ride up the Alpe IRL with two iPhones mounted to your handlebars... See how they actually compare!

Good effort Ray💪💪💪Best regards Martin

As a video game snop I just can’t make my eyes suffer Zwift. Really loving FulGaz.

Cool video, not sure your PC capabilities but Fulgaz video is way smoother than in this video for some reason. Smooth video is one the reasons I like Fulgaz. Also the videos are recorded from a bicycle giving it a more imersive experience. Cheers

Quatix 6? I'd love to see you unbox and later review it as i'm both a sailor and a runner.

Ray, did you publish the comparative data already? I searched your Website and couldn't find anything. I've been Zwifting since the beginning as a beta tester and I am now in trial mode with FulGaz, ready to use a different, but solid, platform that's more realistic (I am not a gamer and Zwift is going in the wrong direction for me).

Clearly zwift is not replicating real life scenario in this test vs. Fulgaz being as close to reality as possible. Not even close winner Fulgaz if you want to replicate reality.

Have you seen differences between whoop hr and hr straps ... I noticed you were wearing whoop on forearm?

In the FullGaz video at 25:15 ans forward, it seems like you are riding downhill on the video but the gradient is up 8 pct. I have seen that in other fullgaz videos as well. Are you seing the same or is it my eyes that are desiving me ?

issues: 1. in real life power is lower from altitude, assuming riding trainer at sea level, 2. Zwift assumes a Crr of 0.3%. If FullGaz is 0.5%, that’s approximately 2% difference, or around 1 minute. 3. I don’t know if software models drivetrain loss. On a smart trainer power is downstream of drivetrain, so that would be double counting, but with a crank or pedal based power, it should be modeled. But that would be around 2 minutes. 4. Zwift is optimistic on CdA. At 12 kph, wind resistance should be around 3% of power, so if that’s different by 2x, that would be around 1.5%, or 1 minute difference.

Dear Ray in the video you said you also have a Tacx Neo, I have one as well, the videos from Fulgaz are great, but I have a problem, i hardly have to change gear. I tried several videos, but all of them have it. I now tested the Alpe duhez ride from tacx with the one of fulgaz. The video's are the same. The ride with fulgaze was an easy one did 4 km, onrealistc easy. Then i dit the tacx video als of Alpe an did the ride to the top,scenery

What is the gearing range on your bike? Front small ring, big back cog?

do you think the garmin instinct 2 could be announced anytime soon?

Just coming back to this after finally giving Fulgas a solid effort. It is awesome that you can ride familiar and new rides with great video. Definitely need to download and not Stream the video in my opinion. FulGaz takes some getting used to and it isn’t the most elegant or finished app but in concert with Training Peaks I think it is a refreshing change from Zwifting all the time. Don’t expect it to be plug and play. Give yourself a week or maybe two before you make it your go to. I expect most people have more than one training app like this. Maybe it’s your second app… like Rouvy/CycleOps used to be.

How can you do that without sweating??????

I just joined Tacx training software... and enjoy watching real video way more then zwift but unfortunately there is no Alpe dhuez or an option to ride the route both ways...

Hey Rainmaker. Love your vids but I think you didn't do justice to FulGaz with the choppy video look. I have used FulGaz for nearly 2 years and I love it. I download my rides in 4k b4 doing them and have never experience choppy videos like that, Its smooth and super slick when downloaded prior. If you are downloading 4 K videos as you are riding them of course it may be choppy but when downloaded prior no issues at all . I can download and ride at same time using 1080p with no choppy stuff. Also you are riding really slowly since you are talking so if doesn't show just how great looking FulGaz is when you ride at normal speed. I would love to see you do another FulGaz ride after downloading first and riding at normal speed. Anyway Keep up the great vids .

300w and talking... Oh my

I've just done very similar "experiment". To compare I took my own video (with very accurate position/slope data), I wasn't in best shape.. it wasn't my personal record. I'm able to run this video with "custom-third party" app (WattZap). Comparing "video" and Zwift I thought that Zwift will be more difficult (as at least hairpins are steeper in Zwift than in reality). The difference between me in "real ride" and "video" was 1.30 vs 1.27 (with "recorded" power). After some small corrections in weight/CdA (in the app, of course :D ), I was able to run it almost 1:1 (less than 20s diff, on the trainer). I fixed the weight in WZ (to have "competitive" bike, CdA untouched), the time was 1.28. With the same settings in Zwift 1.22 (100%, the power was less by ~5W in avg, comparing to "recorded" power, but most of the time I rode the same watts). Short review shows that the profile in Zwift is "more hilly", and the climbs are somehow "lighter" (do they miss something in the power-to-speed formula?). In some parts the gain is up to 30s on single segment (e.g. hairpins 12-13). I need to do some maths to find possible differences. It seems that AdZ is easier than real climb. EDIT. In different RLV apps (Rouvy, VeloRide) I had very similar results on "their" routes. Rouvy is "more difficult" (+3min), VeloRide "slightly easier" (-1min), both close to 1.30. Need to check how it is with FullGaz too.

i use Smart Trainer Magene T300, and ride Alps d'Huez on Zwift and FulGaz, everething work very well in pair on Zwift, but the Simulation Resistance is out of sync in Fulgaz I really like the experience on FulGaz, how can i solve the above proiblem ? please helpe me

Did you even sweat? You're ftp is through the roof man, gj! Excelent video setup congrats

How did you manage to set up the kickr without FulGaz taking control? I’ve had no issues running another app (Trainerroad) with Zwift or Rouvy but cannot get it going with FulGaz despite “controllable” box unticked.

The only way to compare is for you all to try each app.yourselves.Ray made a great comparison and hats off for that.It's what suits YOU that matters.For me I'm FulGaz all the way,as like real rides,and afraid of dinosaurs ;) Oh and being a campag man I hate that Tron looking bike,and the fact zwift encourages truth stretching rides.What's with these feathers etc.But hey ho each to their own.Oh and Fulgaz is cheaper.

how to pair garmin 245 to fulgaz. pairing with Zwift and Tacx is no problem, but fulgaz does not work the same way. can you help

3 watts is a great effort regardless of weight! What was your trainer difficulty set at please? Did you feel the change in gradient in one more than the other?

Try it the other way around use fulGaz as the control and see what happens, if the slopes are out of sync then i will effect the speed and vise versa. But Im sure you thought of that!

When I use FulGaz it works great same or if not better than zwift and also more variety and a lot harder courses I go back to zwift every now and then for a easier break on the mountain routes

I agree Ray, the Zwift version seems way too fast

zwift would be a lot better if it wouldn't look like a year 2000 Sims game

Dear Ray in the video you said you also have a Tacx Neo, I have one as well, the videos from Fulgaz are great, but I have a problem, i hardly have to change gear. I tried several videos, but all of them have it. I now tested the Alpe duhez ride from tacx with the one of fulgaz. The video's are the same. The ride with fulgaze was an easy one did 4 km, onrealistc easy. Then i dit the tacx video als of Alpe an did the ride to the top,scenery was great, but had to change gear rather a lot, which i didnot have to do with fulgaz. How do you have your setting on fulgaze i you use your tacx neo. I would like to know. I Like fulgaze because the have lots of rides in the UK with I Like, but how do I get the rides on my Tacx neo realistic I Have a clime. I Would like to know how you have your settings

The ultimate test would be to actually do the ride IRL with a GoPro then Zwift and TR running at the same time of your power meter :) After the lockdown maybe ;)

Having used Zwift to train for the real Alpe d'Huez, I agree Zwift is a bit easier and faster. Even so, it was a good preparedness tool to give me confidence for the real thing!

Wouldn’t it have been more accurate to set your trainer to slope mode and climb both at a constant 250 rather than having zwift control?

I wonder what frame rates fulgaz uses. If they ride and record at 120fps then at least when someone rides at half the speed of the video rider the frame rate could still hit a realistic 60fps

There’s a lot of stragteies involved with Zwift comparing to fulgaz where there are less mechanics to the game

Hey Man I like you’re cycling red jersey any of those for sale I live In you’re neighborhood

Any of them VR?

Hey man I like hire cycling jersey any if this score sale I live in you’re neighborhood

I passed you on the alp!

Don’t know if this is true but FulGaz claim on their website that Zwift only gives you half the gradient it claims, that is if it says you going up for example a 10% climb the turbo is only actually simulating a 5% gradient and likewise descents are wrong as well, and to make FulGaz feel the same as Zwift you need to turn the slope scale to 50% and descent scale to 20%. I’ve never tried Zwift, only used FulGaz and Taxc Training app so far so I don’t know if thats true. He does seem to be flying up the Zwift one though

Does any app have ambient sound for more immersive experience?

Fulgaz was kinda buggy for me, heart rate monitor froze, and power trainer didn't react very well to grades.

just a casual 300w then 🙂

05:05 exactly same, there is a guy stop

👍

what was your trainer difficulty on zwift? cheers

Ok here

That FullGas movie is left and right all the time. Makes me seasick, am I the only one?

if Fulgz wasn't so choppy, i would try it. I like the real scenery.

I think the side to side wobbling on Fulgaz would make me travel sick!

Zwift needs to add a family account ,for perhaps $20/month, so multiple riders can share a trainer. Absolutely ridiculous they expect each user in a family to pay $15/ month. This fact alone has me actively looking for alternatives.

Is ZWIFT set to 100% ?

FulGaz looks very choppy

There is no way Fulgaz should be that choppy. When i run it on an Apple TV 4k it is as smooth as a baby's bum. There is something wrong with your setup.

Why is the frame rate on Fulgaz so bad?

Fulgaz is better imo.

does fullgaz always have that horrible choppy framerate

This test is quite bunk. You need to do in level/erg mode with constant power output, and on a TT frame in Zwift (draft effect does exist up the Alpe). I'm sure the gap will still be large, but at least it will actually have a semblance of accuracy. Generally find your work very good, but this is poor.

That laggy Fulgaz would drive me crazy. 5 years ago on Bkool it already worked better. Clear win for Zwift.