YIHI SX550J G Class

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Hitcat44

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I saw this thing for the 1st time about 5 hours ago, it has to be the ugliest mod ive ever seen, and ive seen plenty of Vapresso mods...

I once owned an SX Mini, happy to part with it after i found it was the most fiddly TC device ive ever had, too many things to set to get tc working properly. I miss its heft though! Then i got a DNA200 device. but that still wasnt as easy as my TreeBox...no atty lock (i do not miss holding down the up&down buttons every time i changed locations - even in the same damn house), no room temp settings, no joules malarkey. Just set the wire/coil type and temp and press the fire button. I have a few of the things, best mod i ever bought. 1/5 the price of the SX and 1/2 the price of the DNA200. The DNA75C though is calling to me....most of the functions are now on the device, no need to tether to EScribe.

But the G Class is ugly as sin, sorry. And unless theyve changed the amount of thigns you have to fiddle with to get TC working i wont be SX'ing it anytime soon. Easily the most overrated chipset out there. A friend who shall remain nameless says his only gripe with it is the green menu system :)

Well,,, YAY! Good for YOU! :thumbs:
Thanks for stopping by.
Help yourself to some Chocolate Milk & Fishsticks o_O
 

kiba

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Imo you don't buy one of these for the TC or performance, there's obviously other boards which do that way better, but it does do TC well enough to get by & I do have to say the rattlesnake is gone, that hasn't been a thing since the m class afaik.

Personally I bought mine bc it's built really well and I am curious (hopeful maybe) what yihi will do with the firmware. The only ugly part I don't like is the little bars on the side with writing on them and the stupidly long joystick. I think everything else looks good.

Edit, oh and also not a huge fan of the low quality screen they used but w/e it works.
 
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kiba

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I was thinking the other day about how large this board is, it really is a monster and really only works with a similar battery configuration. I hope it's not the Bluetooth that makes it so big bc Idk anyone who uses it.

I do think Evolv is going in a slightly better direction by keeping the board and screen the smaller size.

For example...

6313df63c46488c3a880bc715d8554c6.jpg
7a16ac120ac4f8da03585848e1e8ee00.jpg


(this is assuming the 250c will be the same size)
 

access0denied

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I finally tried my on-board charger last night. Going on vacation in a few weeks, and really don't really bring my huge bulky external charger.

Usually after charging with my external charger, my battery voltage floats very close to 8.35 volts.

Used the charging feature of SX Mini G Class last night, voltage was 8.15-8.20.

Normal for this? Anyone else notice this? I don't think the charging block used 2A charging, but I wouldn't think would cause the issue. It was charging for about 6 hours. Battery was at 7.4 volts when I plugged in the USB cable.
 

Hyperspace

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Id like for Yihi to allow customization of the theming. I want to just design my own menu system, straight forward, all done through a menu system. The only thing I want the stick to modify on the main screen is watts and temp.

I hear a update is coming that will allow customization.
 
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littlewierdo

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I saw this thing for the 1st time about 5 hours ago, it has to be the ugliest mod ive ever seen, and ive seen plenty of Vapresso mods...

I once owned an SX Mini, happy to part with it after i found it was the most fiddly TC device ive ever had, too many things to set to get tc working properly. I miss its heft though! Then i got a DNA200 device. but that still wasnt as easy as my TreeBox...no atty lock (i do not miss holding down the up&down buttons every time i changed locations - even in the same damn house), no room temp settings, no joules malarkey, and no rattlesnaking!. Just set the wire/coil type and temp and press the fire button. I have a few of the things, best mod i ever bought. 1/5 the price of the SX and 1/2 the price of the DNA200. The DNA75C though is calling to me....most of the functions are now on the device, no need to tether to EScribe.

But the G Class is ugly as sin, sorry. And unless theyve changed the amount of thigns you have to fiddle with to get TC working i wont be SX'ing it anytime soon. Easily the most overrated chipset out there. A friend who shall remain nameless says his only gripe with it is the green menu system :)

I've never used the device you speak of. What yihi has done is drastically improved batter life over previous models. The ui is wonky, not intuitive at all. Getting it connected to a PC or your phone is wonky. There really isn't alot of settings you need to configure, its getting the settings you would need to configure on ANY device setup that is frustrating. Turning Tc on, setting Jules to your preferred number, setting your temp, and setting your could type with its tcr setting. What is missing is battery profiles but hey. Everything else is eye candy as far as the device is concerned.

Maybe ramp up time might be important but in my mind, ramp up curves aren't setup correctly on any device. Ramp curves should be percentage based depending on the current temp of your coil. That is, I don't need a ramp up if I take 3 hits back to back except the first hit. If I wait 30 seconds between hits the ramp up should be a certain percentage, not the full ramp up. In other words, if my coils are cold, give me full ramp up. If they are warm, do a partial ramp up. If they are already hot, don't do a ramp up.

Cheaper devices, in my experience are hindered by their efficiency. That is, I need twice as many batteries for the same battery life of a more expensive controller.

Which by the way, let's talk about lingo. The "board" or "chipset" are the wrong terms. It is in electronics terms, a controller or a controller board.

Speaking to charging on device, I haven't tested yihi charging. I have tested evolv charging. Evolv does it correctly,provided you have your battery profile loaded correctly. Perhaps back in the day, charging on device was bad. However, I don't know why this myth continues to propagate that one should not charge on device, especially with evolv boards. When we are talking about the amount of amps dumped into the batteries, 2 amps split between 2 batteries at an amp a piece is perfectly acceptable. These batteries are rated at 300 charge cycles, which, I won't get into how that works here. Charge cycle does not mean what many think it means. I encourage you to ask Google and research this.

These batteries should be good for a year or two at a 1 amp charge. Putting half an amp versus a full amp into the batteries will not noticeably alter their lifespan. Plus, battery technology is improving every year. I replace mine every time I buy a new device, or yearly (ironically, I replace my device about once a year and I use 2,one at home, one when I'm out). When we first started using 18650s,they were 1100 mah. We are at 2500-3000. I'm even starting to see name brand 3500 mahs come out. Seriously think about how often you realistically change your batteries with new ones because when you do, I think you'll come to the same conclusion I did, I just don't care. If charging at 1 amp reduces their lifespan by a month, I'm not worried about it.

The safety on the other hand is a valid concern. Balanced charging is not as important as people make it out to be in my opinion, tho, the device should be smart for the people who aren't. If you just use the same batteries in the same device and keep them married, there is nothing to worry about.
 

stylemessiah

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Imo you don't buy one of these for the TC or performance, there's obviously other boards which do that way better, but it does do TC well enough to get by & I do have to say the rattlesnake is gone, that hasn't been a thing since the m class afaik.

Personally I bought mine bc it's built really well and I am curious (hopeful maybe) what yihi will do with the firmware. The only ugly part I don't like is the little bars on the side with writing on them and the stupidly long joystick. I think everything else looks good.

Edit, oh and also not a huge fan of the low quality screen they used but w/e it works.

Well at least the rattlesnaking is gone! :)

But yeah, i especially like you dont get the side bars at all...
 

kiba

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Well at least the rattlesnaking is gone! :)

But yeah, i especially like you dont get the side bars at all...
I'm glad someone else said it, I hate that fugly writing... My plan (& one of the main reasons I got it) was to sand all the paint off & refinish the whole thing bc everyone said it was SS but when I got it I scraped some paint off & discovered it's some kind of zinc alloy so that won't be happening. [emoji22]

imo yihi lately has been going for flashy vs utility... It's not doing them any favors. I'm not sure about what kind of things they can do with future firmware updates but I think it'd benefit them to at least redesign the UI. (and maybe add some of the features people have been asking for, repeatedly)
U
 
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kiba

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Well either I got two defective units or it is not gone. Quieter, yes, but still present vaping SS 430 at 45-50J

I need to unwatch this thread, don't have the thing anymore...


Wow I think you are right, I just put my ear up to it while firing and it's much more noticeable above 30j. I never noticed that... jeez, this is going to bother the crap out of me. thanks btw[emoji17]

At least it's much faster pulsing now, it used to be like a literal rattlesnake. Seriously wth though, why are they still using this archaic form of TC on a 2017 board that's as big as a phone?

I try to like it but this thing just keeps finding new ways for me to regret buying it.
 
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littlewierdo

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Perhaps this is a case of, what else is there to buy right now? There has not been any new innovations in awhile, what we are seeing is lower end devices with the features and capabilities of the more expensive boards?

Like I said, battery life on the more expensive boards is better, they seem to have the efficiency down and more customization with (arguably) better design (not UI). I personally like the design of the g mini with exception to the plates on the side of the device.

Evolv has realized a big problem right now, the UI is awful. There is something wrong when I have to keep a cheat sheet with what button combinations I have to press to make changes. The problem is even more pronounced when Evolv's own employees cant remember button combinations. What they have failed in however is the screen size. I think Yihi went the right direction with the screen size, what Yihi failed in is not utilizing the screen space very well (as well as bizarre ui design choices).

Based on Yihi's previous track record, Yihi will likely never come out with the promised ui editor. Heck, the android app isnt even on the market, it has to be sideloaded...
 
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kiba

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I'm going to sell mine, the more I think about it the more it pisses me off, and the more I realize this mod has no redeemable qualities. I mean it's made well but it's freaking zinc alloy, so what? Maybe if it was SS or aluminum but no, It'll be destroyed the first time I drop it, and I could saw it in half with a butter knife.

this stupid rattlesnake TC is the straw that broke the camels back now that I know it's doing it... I literally cannot believe they are still doing this... I have a evic that I bought for 20 bucks to screw around with arctic fox, that doesnt do that, not to mention does everything way better.

Plus the fact it looks stupid with anything less than 30mm which is just about everything I want to vape.
 
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andreariana

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Definitely eye of the beholder kinda stuff on that one. Not fond of it with smaller stuff myself.
View attachment 656465

well that still looks beautiful in my eyes
is the joystick safe??
they're protruding out quite a lot right?
is there any case where the joystick got caught on to something?
and thats a strange usb port there, is it usb C ???
 

littlewierdo

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I have been using mine for a week. I continue to love the performance, the UI is manageable but still obnoxious. Still find myself annoyed whenever I need to make any sort of adjustment. The latest firmware update that tied bluetooth to the screen on time is the worst idea ever, I have to go in and set the screen on time to something long so I can use my phone? I dont understand why I cant just turn bluetooth on and have it running, always connected to my phone, much like I do a bluetooth speaker for my phone. It shouldnt be a big battery drain problem unless the bluetooth hardware in the device isnt optimized.

Im really thinking about picking my Triade back up again and just using it until Yihi actually does something to allow for some real customization. That is the part that is the most disappointing to me. I cant put my own wallpapers on it, I cant arrange the UI, I cant rearrange the menu system, the only real customization is power curves. I cant even put a CSV in for the batteries, and I might be wrong, but I dont recall seeing anything for a TCR curve, just a TCR value. Am I wrong? This has been out for 6 months and the only real thing Ive seen as far as firmware is bug fixes and basic features that are in just about any modern ecig device.

Ive owned the M class, the Q class, and now the G class. This thing has improved the battery life drastically. The screen is nice but the UI remains terrible with no customization. The TC is the best Ive ever used (Yihi has nailed TC). There is however, no auto wattage mode, a feature Im seeing on lower end devices that is really clever and nice (throw a new atty on, it will automatically set the wattage to something slightly lower than a reasonable setting that makes sense for the resistance of that new coil so that if you were vaping at say 100 watts on a previous atty and put a small single coil atty on, it wont fire at 100 watts and blow your coil and cotton up).

I have noticed that in TC mode, my coils are getting gunky less often (I can replace the cotton every few days instead of daily).

There are pros and cons and I am undecided as to whether the pros outweigh the cons. I dont find myself needing to change things often, however, there is not much to change so...

Also bizarre, why has Yihi's website been down nearly all this week? Ive been poking in nearly daily to see if any firmware updates are available and all I get are advertisements... If I go straight to the support page, I can check. However, if I go to the product page that advertises the g class, I just get unrelated adverts...
 
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