

ASOMETECH 300W GaN vs Ubigbuy 420W GaN Charger
Two high-output GaN stations around 50 euros: the 300W ASOMETECH with LED display versus the 420W Ubigbuy with PD3.1 140W.
Writer & Product Analyst
Rédige les comparatifs et analyse les caractéristiques des produits. Spécialiste des rapports qualité/prix et des tableaux comparatifs.
September 8, 2026
For power users, these two GaN stations sit in a different league to pocket chargers. The ASOMETECH 300W charger at 53.85 EUR pairs an LED display showing per-port output with retractable cables, so everything you need is built in. The Ubigbuy 420W at 52.03 EUR goes further on power, with PD3.1 and a 140W USB-C output for the most demanding laptops, plus PPS support and a digital display. Both carry near-identical ratings, 4.8/5 for the ASOMETECH from 128 reviews and 4.7/5 for the Ubigbuy from 162. If you routinely charge a laptop and several devices at once, both handle the job, but their priorities differ.
Our analysis
The headline is power. The Ubigbuy delivers 420W total and up to 140W on its single USB-C port, enough even for several high-draw laptops simultaneously, supported by the modern PD3.1 and PPS standards. The ASOMETECH tops out at 300W with a 100W single-port ceiling, which still covers most laptops and phone ecosystems, just with less headroom for heavy multi-device loads. Where the ASOMETECH pulls ahead is convenience: its retractable cables mean you never carry loose cords, and its LED display monitors output per port. The Ubigbuy counters with a slightly higher review count at 162 versus 128, offering a touch more buyer confidence, though its 4.7/5 rating trails the ASOMETECH's 4.8/5. Both are GaN, so each stays compact relative to its output and handles sustained load well. At 53.85 EUR and 52.03 EUR, the two are near price parity, so the decision centres on whether you value the Ubigbuy's higher wattage and 140W port or the ASOMETECH's integrated cables and slightly stronger rating.
Conclusion
If raw power is your priority and you want to charge multiple laptops or high-wattage accessories at full speed, the Ubigbuy 420W is the winner, thanks to its 140W PD3.1 port and larger 420W budget. Choose the ASOMETECH 300W when you prefer a tidy, cable-integrated setup with retractable leads and LED monitoring, and when a 100W single-port output is already enough for your devices.
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📊Scores
Each comparison is based on technical specifications, user reviews and prices collected from the platforms.
⚔Detailed comparison
| Criterion | ASOMETECH 300W GaN | Ubigbuy 420W GaN Charger |
|---|---|---|
| Total Power | 300W | 🏆 420W |
| Single-port max | 100W | 🏆 140W PD3.1 |
| Display | LED per-port output | Digital display |
| Extras | 🏆 Retractable cables | PPS + PD3.1 |
| Rating | 🏆 4.8/5 | 4.7/5 |
| Reviews | 128 | 🏆 162 |
Total Power
ASOMETECH 300W GaN
300W
Ubigbuy 420W GaN Charger
🏆 420W
Single-port max
ASOMETECH 300W GaN
100W
Ubigbuy 420W GaN Charger
🏆 140W PD3.1
Display
ASOMETECH 300W GaN
LED per-port output
Ubigbuy 420W GaN Charger
Digital display
Extras
ASOMETECH 300W GaN
🏆 Retractable cables
Ubigbuy 420W GaN Charger
PPS + PD3.1
Rating
ASOMETECH 300W GaN
🏆 4.8/5
Ubigbuy 420W GaN Charger
4.7/5
Reviews
ASOMETECH 300W GaN
128
Ubigbuy 420W GaN Charger
🏆 162
🔍 Data sources
Specifications, prices and availability are collected from the product listings on Amazon and AliExpress. Buyer ratings shown are the averages published by these platforms. Our methodology · Price transparency
✓Final verdict
Choose the Ubigbuy 420W if you need the highest total power and 140W per port; choose the ASOMETECH if retractable cables and a cleaner rating matter more.
⚖Pros and cons
ASOMETECH 300W GaN
Pros
- +Retractable built-in cables
- +Slightly better 4.8/5 rating
- +LED per-port monitoring
Cons
- -Lower 300W ceiling
- -100W single-port max
- -Fewer reviews at 128
Ubigbuy 420W GaN Charger
Pros
- +Higher 420W total
- +140W PD3.1 output
- +PPS support + 162 reviews
Cons
- -Slightly lower 4.7/5 rating
- -No retractable cable
- -Slightly dearer entry price
🛒Where to buy?

ASOMETECH
ASOMETECH 300W GaN USB Charger LED Display Retractable 100W 65W
Ubigbuy
Ubigbuy 420W GaN Charger PPS PD3.1 140W USB Type C Digital DisplaySome links on this site are affiliate links. We may receive a commission if you purchase through these links, at no extra cost to you.