The EZQuest UltraSlim 70W GaN II Dual USB-C charger (official page) targets users who want real laptop-class charging performance in a design that is significantly thinner than traditional power bricks. Its official highlights include a maximum output of 70 watts, two USB-C Power Delivery ports, and an ultra-slim profile that EZQuest claims is more compact and practical than most competing 45 to 70-watt chargers. These claims are attractive on paper, and this review verifies how the charger performs in real-world conditions, including laptop charging, dual-device charging, heat management, and overall practicality.
Design
The UltraSlim 70W has a very distinctive design. It is incredibly flat, only 13 millimeters thick, and shaped like a small plate rather than a cube. Competing compact chargers often use cube-like shapes that protrude significantly from the wall. In contrast, the EZQuest charger sits close to the outlet and keeps the cable pointing downward.
This design is, in my opinion, particularly useful when traveling. On airplanes, seat outlets are often located in front of you, in a cramped area. Cube chargers stick out and tend to get bumped or kicked when people move in and out of the row. I have had two chargers damaged this way. The flat design reduces exposure and dramatically lowers the chance of accidental impact. Behind furniture or in tight corners, the design is also more practical and easier to manage.
When packed in a bag or pocket, the UltraSlim 70W takes up very little space. The flat shape uses space more efficiently than cube chargers of similar total volume. Although some competitors are slightly smaller in absolute volume, the UltraSlim 70W is more portable in real usage. The build quality is fair, and the plastic housing feels similar to many high-end competitors in this category.
Overall, the design is not only different but also superior for travel and daily portability. It is reasonable to expect that other brands will eventually adopt similar form factors.
Charging Performance
Laptop charging
During testing, the EZQuest UltraSlim delivered up to 68 watts while charging a MacBook Pro. This is very close to the advertised 70 watt output. The charger stayed cool during extended sessions, an impressive feat for a device of this size. Many thin chargers tend to heat up quickly under full load, but this one manages heat very well.
Modern thin & light laptops that require 60-65 watts can run and charge at full performance with this charger. For computers that typically ship with a larger power supply, like my Macbook Pro 140W charger, the 70W can sustain the battery if used for light tasks. From a laptop charging perspective, the UltraSlim meets expectations.
Smartphone and tablet charging
Smartphones behave differently. Many of them rely on proprietary fast charging protocols that are not part of USB Power Delivery. As a result, they will not reach their maximum rated speeds. In practice:
- Honor Magic V5 charged at about 25 watts (the manufacturer charger can reach 66 watts)
- Galaxy S24 Ultra charged at about 33 watts
- Recent iPhones typically charge at around ~20 watts
The UltraSlim still charges phones “quickly”, but not at manufacturer proprietary peak speeds (50W for Samsung, 66W for Honor). This is normal for a third-party USB-PD charger.
Dual device charging and behavior
The charger supports two devices at the same time, but power allocation is not -that- dynamic. EZQuest specifies that the charger uses one of two configurations: 35 watts plus 35 watts, or 45 watts plus 20 watts.
In real use, when charging a MacBook Pro and a smartphone together, the laptop drew about 35 watts and the phone drew about 20 watts. Even though the laptop alone previously drew 68 watts, the charger clearly switched into the 35 watt plus 35 watt mode. This is fine for two smaller devices, such as two phones or a phone and a tablet, but users should not expect full laptop power while a second device is connected.
The cable is not included. For best performance, a high-quality USB-C cable is required, ideally an e-marked cable that supports 60 to 100 watt charging. These days, it’s very easy to find (relatively) affordable USB-C cables rated for 240W.
Competitivity
Among chargers in the 45-70 watt category, the UltraSlim stands out for its form factor. A cube-shaped charger with a similar power output often occupies more physical space when plugged in, even though its technical volume is smaller. The flat design is more practical in real conditions.
Compared with standard 70 watt chargers from major brands, the EZQuest charger is significantly smaller and easier to carry. Multi-port GaN chargers from other brands provide more ports or higher total wattage, but they are physically larger and less convenient for travel.
“THE ULTRASLIM STANDS OUT FOR ITS FORM FACTOR”
The lack of a USB-A port may disappoint some users, but adding one would likely require additional thickness, undermining the design. A USB-C-to-USB-A adapter can solve this if needed.
There are very inexpensive 65 or 100 watt GaN chargers from unknown brands, but reliability and long-term safety vary widely. When connecting an expensive laptop or smartphone, many users prefer a trusted brand. Within this context, the EZQuest UltraSlim competes on design, real performance, and practical portability rather than sheer port count or raw watt-per-dollar metrics.
If price is a concern, don’t worry about the $49.99 MSRP. You can find this product on Amazon for $19.99 (at the time of publication). See review header link.
Conclusion
The EZQuest UltraSlim 70W is an excellent option for travellers and anyone who needs a compact charger that powers a modern laptop. It performs near its rated 70 watts, it stays cool under load, and it offers a unique flat design that solves real problems in tight spaces or crowded environments. Smartphone charging is limited by USB-PD standards, not by the charger itself.
If design does not matter, there are cheaper alternatives, although many are from unknown brands. If you carry an expensive laptop or phone, paying a little more for a reliable and well-designed charger feels justified. The UltraSlim 70W delivers a compelling balance of performance, portability, and safety that few chargers in this power range can match.
Highs
- Ultra-thin, flat, and extremely travel-friendly design
- Nearly full-rated power (≈68 W) under real load
- Cool thermal behavior even under sustained laptop draw
- Much more compact than standard 60–70 W chargers
Lows
- No cable included — you must supply a quality USB-C PD cable yourself
- Power sharing is not fully dynamic — dual-device charging reduces per-device wattage
- Phone charging limited to USB-PD standard speeds (no proprietary fast charging)
Rating + Price
- Rating: 9.2/10
- Price: ~$19.99
- Available on Amazon
