140W · GaN charger ·

100W vs. 140W GaN Charger: Which Do You Really Need?

More watts, faster charging? Not always. Here's how to choose the right USB-C charger for your laptop, phone, and everyday setup.

Your laptop needs charging. Your phone is running low. Your tablet is almost out of battery. And somehow, you've ended up with three different chargers fighting for the same power outlet.

Sound familiar? 

With more of us working across multiple devices, a powerful multi-port USB-C charger has become an everyday essential. But when choosing between a 100W and a 140W GaN charger, there's one question worth asking:

Do you actually need those extra 40 watts?

The answer depends on what you're charging, how many devices you use, and whether charging speed or convenience matters most.

Let's break it down.

1. 100W vs. 140W: What's the Real Difference?

The biggest difference is the maximum power each charger can deliver.

A 100W USB-C charger can supply up to 100 watts to a compatible device, making it a practical choice for many laptops, tablets, and smartphones.

A 140W charger takes things further, offering additional power for compatible high-performance laptops and more flexibility in certain multi-device setups.

But here's the important part:

A 140W charger won't automatically charge every device 40% faster than a 100W charger.

Your device determines how much power it can accept.

For example, if your laptop supports a maximum charging input of 65W, connecting it to a 140W charger won't make it charge at 140W.

Instead, a compatible charger and device negotiate an appropriate power level through USB Power Delivery.

So, before choosing the higher wattage, consider what your devices actually need.

2. Is 100W Enough for Your Laptop?

For many people, absolutely.

If you use a MacBook Air, a compatible 14-inch MacBook Pro, or another USB-C laptop with charging requirements within 100W, a 100W charger can be more than enough for everyday use.

It's particularly useful for people who:

  • Work primarily on a laptop.

  • Charge a phone or tablet alongside their computer.

  • Want fewer chargers on their desk.

  • Prefer a compact charger for commuting or travel.

Meet the NOVOO 100W GaN Charger


The NOVOO 100W 3-Port GaN Charger is designed around this everyday setup. With two USB-C ports and one USB-A port, it can charge up to three devices simultaneously.

Its USB-C ports support up to 100W when used individually, while its multi-port power distribution makes it practical for a laptop-and-phone combination.

For example, when both USB-C ports are in use, the charger can distribute up to:

70W + 30W

That's a useful combination for charging a laptop and a phone or tablet at the same time.

Powered by GaN III technology, the charger also features a compact design and a foldable plug (for US spec only), making it easy to carry between home, the office, and wherever the day takes you.

Best for: Everyday laptop users, hybrid workers, students, and travelers who want a simple all-in-one charging solution.

Explore the NOVOO 100W GaN Charger

3. When Does a 140W Charger Make More Sense?

If your setup includes a power-hungry laptop or several devices that need charging throughout the day, stepping up to 140W can make a difference.

One example is a compatible 16-inch MacBook Pro.

Apple recommends a 140W USB-C power adapter for its supported 16-inch MacBook Pro models, allowing them to take advantage of high-wattage fast charging.

This is where USB Power Delivery 3.1 becomes important.

Unlike standard USB PD 3.0 charging, which supports up to 100W, USB PD 3.1 introduces higher power levels, including 140W charging through a compatible device and cable.

Meet the NOVOO RG140 140W GaN Charger

The NOVOO RG140 is built for users who need more power and greater charging flexibility. Its USB-C1 port delivers up to 140W through USB PD 3.1, making it suitable for compatible high-performance laptops.

It also features:

  • 4 charging ports: 3 USB-C and 1 USB-A.

  • Up to 140W single-port output: For compatible high-power devices.

  • Up to 100W PPS support: For compatible devices that use programmable fast charging.

  • Intelligent power distribution: Designed to manage power across connected devices.

  • GaN III technology: Powerful charging in a compact form factor.


The RG140 also includes a 240W-rated USB-C to USB-C cable, helping you get started with compatible high-power USB-C charging. 

Best for: Power users, creative professionals, high-performance laptop owners, and anyone managing multiple devices throughout the day.

Explore the NOVOO RG140 140W GaN Charger

4. One Charger, Multiple Devices: Which Works Better?

Here's where things get interesting.

A charger's maximum wattage is important, but so is how that power gets shared when multiple devices are connected.

Let's look at two common setups.

Scenario A: Your Everyday Work Setup

Laptop + Smartphone +Earbuds

You're working from a café or at your desk. Your laptop needs power, your phone needs a top-up, and your earbuds are running low.

The NOVOO 100W charger can handle all three devices. With all three ports in use, its rated power distribution is:

70W + 12W + 12W

For many everyday work setups, that's a practical balance between laptop charging and keeping smaller devices powered.

If your laptop's charging needs fit within that allocation, you may not need a higher-wattage charger.

Scenario B: Your Multi-Device Power Setup

Two Laptops + Other Everyday Devices

Imagine working with two laptops, a smartphone, and other devices that all need power throughout the day. When multiple devices need charging, especially when one or two require higher power, having the right charger makes a real difference.

The NOVOO RG140 is designed for these more demanding setups.

With two USB-C ports in use, it can deliver:

65W + 65W

That's enough to power two compatible USB-C laptops simultaneously, without needing separate power adapters. And when you need maximum charging power for a single device, the RG140's USB-C1 port supports up to 140W, making it ideal for compatible high-performance laptops.

Whether you're managing multiple laptops, switching between work and personal devices, or sharing a workspace, the RG140 gives you more flexibility to keep everything powered.

One thing to remember: Charging power is shared when multiple devices are connected. Actual output depends on the port combination and each device's charging requirements.

5. Does a 140W Charger Charge Your Phone Faster?

Not necessarily.

It's a common misconception that a higher-wattage charger will always charge a smartphone faster.

In reality, charging speed depends on several factors:

  • The phone's supported charging wattage.

  • The fast-charging protocol it uses.

  • The USB-C cable.

  • Battery temperature and charge level.

  • Whether other devices are connected.

Both NOVOO chargers support multiple fast-charging protocols, including USB Power Delivery and PPS.

The RG140 offers additional flexibility with up to 100W PPS support on its USB-C1 and USB-C2 ports, as well as compatibility with Samsung Galaxy Super Fast Charging 2.0.

However, your phone will only draw the power it supports.

The takeaway? If you're buying a charger mainly for your smartphone, 140W alone isn't a reason to upgrade.

6. What About Charging on the Go?

Whether you're heading to the office, working remotely, or traveling with a laptop and phone, carrying fewer chargers makes life easier.

Both NOVOO models use GaN III technology, which helps deliver high power in a compact design.

  • The NOVOO 100W is a convenient everyday option for people who want a straightforward laptop-and-phone charger.
  • The RG140 is better suited to travelers who carry additional devices or want the flexibility of higher-wattage laptop charging.

Before traveling, remember to check the plug type for your destination and the charging requirements of your devices.

7. So, Should You Choose 100W or 140W?

There's no universal winner.

The better choice is the one that matches your actual charging needs.

Choose a 100W GaN Charger If You:

  • Use a laptop that charges comfortably within 100W.

  • Usually charge two or three devices.

  • Want a compact charger for work and travel.

  • Prefer a simple, practical everyday setup.

Our pick: NOVOO 100W GaN Charger.

 

Choose a 140W GaN Charger If You:

  • Own a laptop that supports charging above 100W.

  • Want USB PD 3.1 fast charging for compatible devices.

  • Regularly charge four devices.

  • Need more flexible multi-port charging options.

  • Use a high-performance laptop for demanding work.

Our pick: NOVOO RG140 140W GaN Charger.

8. Frequently Asked Questions

▮ Can I use a 140W charger with a 65W laptop?

Yes, provided the charger and laptop support compatible USB-C charging standards.
A compatible laptop will negotiate its required power rather than automatically drawing the charger's maximum 140W output.

▮ Will a 100W charger work with a 16-inch MacBook Pro?

Yes, compatible 16-inch MacBook Pro models can charge using a 100W USB-C power adapter.
However, a 100W charger won't provide the full 140W fast-charging capability supported by certain models.

▮ Do I need a special cable for 140W charging?

Yes. For 140W USB-C PD 3.1 charging, you'll need a compatible high-power USB-C cable, typically rated for 240W EPR.
Some laptops also have specific charging-port or cable requirements.
For example, certain 16-inch MacBook Pro models require Apple's USB-C to MagSafe 3 cable to achieve their full 140W charging capability.

▮ Is GaN better than a traditional charger?

GaN, or gallium nitride, is a semiconductor technology that enables efficient power conversion and compact charger designs.
It's one reason modern high-wattage chargers can be significantly smaller than many traditional power adapters.
However, overall charger quality also depends on its design, components, and power management.

Final Thoughts: More Power Isn't Always Better. The Right Power Is.

Choosing between a 100W and 140W GaN charger isn't simply about picking the bigger number.

It's about understanding your devices, your daily routine, and how you prefer to charge.

For everyday laptop users, a compact 100W charger may be everything you need.

For demanding laptops and more complex multi-device setups, a 140W charger offers extra power and flexibility.

Whichever fits your routine, the goal is the same:

Less clutter. Fewer chargers. More freedom to power your day.

Explore the NOVOO charging lineup and find the setup that works for you.

Back to News