Wolkenkraft ÄRiS Ultra vs Fenix Pro: Budget Convection Vaporizer Comparison
Two German brands, two convection vaporizers, both under €100. The Wolkenkraft ÄRiS Ultra and the Fenix Pro are distributed by 157Grad and share the same platform. Same device with a different sticker? Not quite. There are a few differences that may or may not justify the €25 price gap.
What they share
Both devices come from the same manufacturer and share core technology: pure convection heating, OLED display with precise temperature control, USB-C charging, dosing capsule compatibility, and a WPA adapter for water pipes. Heat-up time is around 25 seconds for both, max temperature sits at 220–221 °C.
If you have never used a convection vaporizer before, either one delivers clean flavor, simple operation, and a form factor that fits in any jacket pocket.
Comparison table
| Feature | ÄRiS Ultra | Fenix Pro |
|---|---|---|
| Price (from) | 94 | 70 |
| Heating | Convection | Convection |
| Max temp | 220 °C | 221 °C |
| Heat-up | 25 s | 25 s |
| Battery | 2,600 mAh | 2,300 mAh |
| Chamber | Titanium | Ceramic |
| Dosing capsules | Yes | Yes |
| Water pipe adapter | Yes | Yes |
| Warranty | 2 years | 1 year |
| Brand | Wolkenkraft (DE) | Fenix (DE) |
Chamber: Titanium vs ceramic
The biggest technical difference is the heating chamber. The ÄRiS Ultra uses a titanium chamber that conducts heat evenly and adds no taste of its own. At this price point, titanium is unusual — you normally see it in devices above €150.
The Fenix Pro uses ceramic. Also flavor-neutral and solid, but a bit slower to respond to temperature changes. At low temps around 180–190 °C, the difference shows: the ÄRiS Ultra delivers more terpenes and a finer flavor profile. Above 210 °C, both perform similarly.
Battery life
2,600 mAh vs 2,300 mAh. That translates to one or two extra sessions per charge with the ÄRiS Ultra. Casual users will not notice. Daily drivers and people who vape on the go will appreciate the extra capacity.
Both charge via USB-C in about 90 minutes. Neither supports passthrough charging or a replaceable battery — standard at this price.
Warranty
Wolkenkraft offers 2 years on the ÄRiS Ultra. Fenix gives 1 year on the Pro. For a device you use every day, that extra year of coverage makes a real difference. Both brands ship from Germany with local support.
Current prices
The ÄRiS Ultra currently starts at 94, the Fenix Pro at 70. Both pop up in sales regularly — worth checking the price tracker below.
Verdict
Both devices share the same platform and deliver solid convection vapor under €100. The Fenix Pro is the cheaper option and works well for beginners or as a backup vaporizer.
The ÄRiS Ultra costs about €25 more and adds a titanium chamber, 300 mAh extra battery, and twice the warranty period. If you want the better overall package and can spend a bit more, the Ultra is the way to go.
Frequently asked questions
Are the ÄRiS Ultra and Fenix Pro the same device?
They share the same platform from 157Grad but differ in chamber material (titanium vs. ceramic), battery size, and warranty length.
Which one should I pick as a beginner?
If you want to stay under €75, the Fenix Pro is solid. If you can spend €25 more, the ÄRiS Ultra offers a better package with longer warranty and finer vapor quality.
Do they use the same dosing capsules?
Yes. Both accept the same stainless steel dosing capsules that also fit many other convection vaporizers.