What is a GaN charger?

A GaN (Gallium Nitride) charger uses GaN semiconductors instead of traditional silicon. GaN transistors switch faster, waste less energy as heat, and can be packed more densely — resulting in chargers that are up to 50% smaller and significantly more efficient than silicon chargers of the same wattage.

Is GaN better than silicon for chargers?

Yes. GaN chargers run cooler, are physically smaller, and are more energy-efficient. A 65W GaN charger is typically the same size as a 30W silicon charger. The only trade-off is price — GaN chargers cost 10–30% more than silicon equivalents, though prices are falling rapidly.

How long do GaN chargers last?

GaN semiconductors have an expected lifespan of 10–20 years under normal use. Because they run cooler than silicon, thermal degradation is slower. Most premium GaN chargers also include over-voltage, over-current, and short-circuit protection that extends overall charger longevity.

What wattage GaN charger do I need?

For phones and tablets: 30–45W is plenty. For a MacBook Air or most 13" laptops: 65W is ideal. For a MacBook Pro 16" or gaming laptops: go with 100W+. If you charge multiple devices simultaneously, add up each device's optimal wattage and add a 20% buffer.

Can a GaN charger damage my device?

No. USB Power Delivery (PD) negotiation means your device only draws the power it needs. A 100W GaN charger won't push 100W into a phone — the phone will negotiate for 20–25W. The charger simply has more headroom.

What is GaN III and how is it different from GaN II?

GaN III is the third generation of GaN semiconductor technology. Compared to GaN II, it achieves ~5% higher efficiency, runs 5–10 °C cooler, and enables even more compact designs. Brands like Anker (GaNPrime) and UGREEN (Nexode Pro) use GaN III in their 2025–2026 lineups.

Do GaN chargers work with all devices?

Yes. GaN chargers use standard USB-C and USB-A ports with universal protocols (USB PD, PPS, QC). They work with iPhones, Samsung Galaxy, iPads, MacBooks, Windows laptops, Nintendo Switch, Steam Deck, and more. The charging protocol is determined by the port and cable, not the semiconductor material.

Why are GaN chargers more expensive?

GaN semiconductors cost more to manufacture than silicon because the raw material (gallium nitride) is rarer and fabrication requires specialised equipment. However, prices have dropped 40–50% since 2022 and are expected to reach near-silicon pricing by 2027 as production scales.

Which brand makes the best GaN chargers in the UK?

Anker, UGREEN, and Baseus are the top three GaN charger brands available in the UK. Anker leads in efficiency and safety tech (GaNPrime/ActiveShield 2.0), UGREEN offers the best value at higher wattages (100W+), and Baseus wins on price for budget-conscious buyers.

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SmartGearOutlet

Buying Guide — Updated March 2026

Best GaN Chargers UK 2026

Q: Are GaN chargers safe?

Absolutely. Reputable GaN chargers from brands like Anker, UGREEN, and Baseus undergo rigorous UKCA/CE certification. GaN's superior thermal properties actually make these chargers safer than silicon — they generate less waste heat and are less prone to overheating under sustained load.

Gallium Nitride chargers are smaller, cooler, and more efficient than silicon — and 2026 is the year they become the default. We tested and compared every major GaN charger available in the UK to find the five that actually matter.

See Our Top Picks What Is GaN?

⚡ Key Takeaways

GaN chargers are 40–50% smaller than silicon at the same wattage
GaN III (2025–2026) runs 10–15 °C cooler than GaN I chargers
Anker Prime 67W is our Editor's Choice for everyday use
Baseus GaN5 Pro 65W is the best budget option at £28
You do NOT need the highest wattage — match it to your devices
100W GaN chargers now cost what 65W silicon did in 2023

Affiliate Disclosure

SmartGear Outlet is a UGREEN affiliate partner. When you purchase through our partner links, we may earn a commission at no additional cost to you. This helps us provide free content and expert advice. We only recommend products we genuinely believe in.

What Is GaN Technology? (And Why It Matters)

GaN (Gallium Nitride) is a semiconductor material that's replacing silicon in charger power stages. While silicon has powered electronics since the 1960s, GaN transistors can switch on and off much faster — up to 40 GHz versus silicon's 6 GHz. This higher switching frequency is the key to everything that makes GaN chargers better.

Faster switching means less energy is wasted as heat during the power conversion process. Less heat means smaller heatsinks. Smaller heatsinks plus denser transistor packing equals a charger that's 40–50% smaller than a silicon equivalent at the same wattage.

For you, the consumer, this means a 65W charger that fits in your pocket, runs barely warm to the touch, and converts mains electricity to USB power with 93%+ efficiency. Your electricity bill is fractionally lower, your charger lasts longer (less thermal stress), and your bag is lighter.

40–50% Smaller

GaN transistors pack more densely, shrinking charger size dramatically without losing power.

10–15 °C Cooler

Higher efficiency means less waste heat. GaN chargers run noticeably cooler under sustained load.

93%+ Efficient

More of your mains electricity reaches your device. Less wasted as heat, noise, or electromagnetic interference.

GaN vs Silicon — Side-by-Side Comparison

The differences between GaN and silicon chargers are measurable and significant. Here's how they compare across every metric that matters:

Metric	GaN Charger	Silicon Charger
Size (65W)	52 × 43 × 34 mm	80 × 60 × 45 mm
Weight (65W)	110–130 g	180–250 g
Efficiency	92–95%	85–89%
Operating Temperature	35–45 °C under load	50–65 °C under load
Switching Frequency	Up to 40 GHz	Up to 6 GHz
Typical Price (65W)	£28–£45	£18–£30
Lifespan (estimated)	10–20 years	5–10 years
Audible Noise	Near silent	Occasional coil whine
UK Availability	Widely available (2024+)	Ubiquitous

Source: SmartGear Outlet lab testing and manufacturer specifications, February 2026.

Top 5 GaN Chargers UK 2026 — Tested & Reviewed

Every charger below has been tested at our lab for efficiency, temperature, build quality, and real-world charging speed.

#1⭐ Editor's Choice9.4/10

Anker Prime 67W

Best for: MacBook Air, Everyday Carry

Anker's GaNPrime technology makes this the most efficient 67W charger we've tested. It runs cool under sustained load, dynamically distributes power across all three ports, and is small enough to disappear in a jacket pocket. PD 3.1 support future-proofs it for years to come.

Power

67W

Ports

3 Ports

Weight

116 g

GaN Gen

GaN III (GaNPrime™)

Port Configuration: 2× USB-C (PD 3.1) + 1× USB-A| Protocols: USB PD 3.1, PPS, Quick Charge 5.0, Apple 2.4A, Samsung AFC

Pros

Industry-leading GaNPrime™ efficiency (93%+)
Runs 10–15 °C cooler than competitors at same wattage
ActiveShield 2.0 temperature monitoring — checks every 3 seconds
Foldable UK 3-pin plug for easy travel
Full-speed MacBook Air charge in ~95 minutes

Cons

✕Not enough power for 16" MacBook Pro at full speed
✕USB-A port limited to 22.5W
✕Slightly pricier than UGREEN Nexode 65W

£39.99incl. VAT

View Anker Deal

#2🏆 Premium Pick9.3/10

UGREEN Nexode Pro 100W

Best for: 16" MacBook Pro, Power Users

UGREEN's Nexode Pro line pushes GaN III to the limit. This 100W charger can simultaneously fast-charge a MacBook Pro 16", an iPad, and a smartphone without breaking a sweat. The thermal design is outstanding — only 1–2 °C warmer than a 65W charger at full load.

Power

100W

Ports

3 Ports

Weight

194 g

GaN Gen

GaN III (Nexode Pro)

Port Configuration: 2× USB-C (PD 3.1) + 1× USB-A| Protocols: USB PD 3.1, PPS, Quick Charge 4+, Samsung AFC, Apple 2.4A

Pros

Full 100W on a single USB-C port — charges any laptop
Smart power distribution keeps all 3 devices at optimal speed
Thermal Guard technology with 9 built-in safety features
35% smaller than Apple's 96W charger
Premium matte finish that resists fingerprints

Cons

✕Slightly heavier than 65W options
✕Costs more than budget 100W silicon chargers
✕No LED indicator for charging status

£54.99incl. VAT

View UGREEN Deal

#3💰 Best Value8.9/10

Baseus GaN5 Pro 65W

Best for: Budget Buyers, Students

The Baseus GaN5 Pro punches well above its weight — literally. At under £28 it's the cheapest credible 65W GaN charger in the UK, and it doesn't cut corners on safety certifications. If you need reliable, fast charging without the premium price tag, this is our pick.

Power

65W

Ports

3 Ports

Weight

120 g

GaN Gen

GaN5

Port Configuration: 2× USB-C + 1× USB-A| Protocols: USB PD 3.0, PPS, Quick Charge 3.0, Samsung AFC, Apple 2.4A

Pros

Exceptional value — £12 less than Anker Prime 67W
Full UKCA / CE certification with surge protection
Compact enough for daily carry
Supports laptop charging at 65W single-port
LED indicator ring shows charging status

Cons

✕Runs 5 °C warmer than Anker/UGREEN at sustained load
✕Plasticky build quality compared to premium options
✕Power distribution less intelligent under multi-device load

£27.99incl. VAT

View Baseus Deal

#48.7/10

Anker Nano II 45W

Best for: Samsung Galaxy, Single Device

If you only need to charge one device and want the smallest possible charger, the Nano II 45W is extraordinary. It's barely larger than a golf ball, yet it delivers enough power for Samsung Galaxy S25 Ultra's maximum 45W Super Fast Charging or a MacBook Air at 80% speed.

Power

45W

Ports

1 Port

Weight

68 g

GaN Gen

GaN II

Port Configuration: 1× USB-C (PD 3.0)| Protocols: USB PD 3.0, PPS, Samsung Super Fast Charging, Apple 2.4A

Pros

Incredibly compact — 60% smaller than Samsung's 45W charger
Samsung 45W Super Fast Charging compatible
Ideal as a secondary / travel charger
Runs cool thanks to GaN II efficiency

Cons

✕Only one port — can't charge multiple devices
✕Not enough for large laptops (45W max)
✕No USB-A fallback for older cables

£24.99incl. VAT

View Anker Deal

#59.1/10

UGREEN Nexode 200W Desktop

Best for: Home Office, Families, Desk Setup

The Nexode 200W is a desktop charging station that replaces every charger in your home office. Two laptops, two phones, and two tablets — simultaneously. The aluminium build doubles as a passive heatsink, keeping temperatures lower than smaller chargers running at a fraction of the wattage.

Power

200W

Ports

6 Ports

Weight

570 g

GaN Gen

GaN III

Port Configuration: 4× USB-C + 2× USB-A| Protocols: USB PD 3.1, PPS, Quick Charge 5.0, Samsung AFC, Apple 2.4A

Pros

Charges 6 devices simultaneously — replaces all adapters
Premium aluminium construction acts as heatsink
140W single-port max — handles even the MacBook Pro 16" at full speed
2-metre braided cable included
Under-desk mounting kit available

Cons

✕Not portable — designed for desk use
✕Premium price (£120)
✕Requires mains outlet — no built-in battery

£119.99incl. VAT

View UGREEN Deal

Quick Comparison Table

Charger	Watts	Ports	GaN Gen	Weight	Price	Rating
Anker Prime 67W⭐	67W	3 Ports	GaN III (GaNPrime™)	116 g	£39.99	9.4/10
UGREEN Nexode Pro 100W	100W	3 Ports	GaN III (Nexode Pro)	194 g	£54.99	9.3/10
Baseus GaN5 Pro 65W💰	65W	3 Ports	GaN5	120 g	£27.99	8.9/10
Anker Nano II 45W	45W	1 Port	GaN II	68 g	£24.99	8.7/10
UGREEN Nexode 200W Desktop	200W	6 Ports	GaN III	570 g	£119.99	9.1/10

How to Choose the Right GaN Charger

Match Wattage to Your Hungriest Device

Your charger's wattage should meet or exceed the requirement of the most power-hungry device you'll charge. An iPhone needs 20–27W. A MacBook Air needs 67W. A MacBook Pro 16" needs 140W. If you only charge a phone, a 30–45W GaN charger is all you need — don't overspend on wattage you'll never use.

💡 Pro tip: Check your device's original charger wattage. Your GaN charger should match or exceed that number.

Count Your Simultaneous Devices

Multi-port GaN chargers share total wattage across ports. A "100W" 3-port charger might deliver 65W + 25W + 10W when all ports are in use. If you charge a laptop and phone simultaneously, ensure the primary USB-C port delivers enough for the laptop after power splitting.

💡 Pro tip: For laptop + phone: choose a charger rated at least 30W above your laptop's requirement.

Prioritise Portability or Power (Not Both)

Physics still applies: a 200W charger will always be larger than a 45W charger. Decide your primary use case. For daily carry, the 45–67W range offers the best size-to-power ratio. For a desk setup, go big with a 100–200W desktop unit.

💡 Pro tip: The sweet spot for most UK users is 65W — it handles laptops, tablets, and phones in a pocket-sized package.

Check Charging Protocols

All GaN chargers support USB Power Delivery (PD), but extras like PPS (Programmable Power Supply) matter for Samsung fast charging, and PD 3.1 enables 140W+ charging for the latest MacBook Pros. If you have Samsung devices, ensure PPS support.

💡 Pro tip: Samsung Galaxy owners: look for PPS support. Apple users: standard USB PD is sufficient.

Don't Ignore Safety Certifications

In the UK, look for UKCA marking (post-Brexit replacement for CE). Reputable brands like Anker, UGREEN, and Baseus include over-voltage protection (OVP), over-current protection (OCP), short-circuit protection, and temperature monitoring. Avoid unbranded chargers that lack these certifications.

💡 Pro tip: UKCA mark + brand name + UK plug = safe. If it ships from overseas with a plug adapter, be cautious.

GaN I vs II vs III — What Changed?

GaN charger technology has evolved rapidly. Here's how each generation improved on the last:

GaN I (2019–2021)

First generation to reach consumers. Proved the concept — 30–40% smaller than silicon at same wattage. Efficiency ~88–90%. Early models from Anker (PowerPort Atom) and Ravpower.

Key chargers: Early Anker PowerPort Atom PD, Ravpower 61W

GaN II (2022–2023)

Major leap in integration and efficiency. 90–92% efficiency. Chargers shrank another 15–20%. Anker introduced ActiveShield temperature monitoring. Multi-port designs became practical.

Key chargers: Anker Nano II 45W, UGREEN Nexode 65W, Baseus GaN3 Pro

GaN III (2024–2026)

Current generation. 92–95% efficiency. 5–10 °C cooler than GaN II. Supports USB PD 3.1 (up to 240W theoretical). Anker calls it "GaNPrime", UGREEN calls it "Nexode Pro". The performance gap over silicon has never been wider.

Key chargers: Anker Prime 67W, UGREEN Nexode Pro 100W, Baseus GaN5 Pro 65W

Are GaN Chargers Safe? UK Certifications Explained

Yes — GaN chargers from reputable brands are as safe or safer than silicon chargers. GaN's lower operating temperatures actually reduce fire risk. However, safety depends on proper design and certification, not just the semiconductor material.

What to Look For in the UK

UKCA Mark

Mandatory for products sold in England, Wales, and Scotland. Confirms compliance with UK safety regulations.

CE Mark

Still accepted in Northern Ireland and EU. Indicates conformity with European health and safety standards.

BS 1363 Plug

UK 3-pin plug standard. Ensure the charger has a genuine moulded UK plug — not a snap-on adapter.

RoHS Compliant

Restricts hazardous substances. All chargers sold in the UK must be RoHS compliant.

⚠️ Warning: Avoid GaN chargers from unknown brands on marketplace sites that ship from overseas without UKCA marking. These may lack proper safety testing and could use counterfeit GaN chips. Stick to SmartGear, Anker, UGREEN, Baseus, and other established brands.

Frequently Asked Questions

Ready to Upgrade to GaN?

Browse our curated collection of GaN chargers — every product is UKCA-certified, tested by our team, and backed by free UK shipping.

Shop GaN Chargers Find My Perfect Charger

Best GaN Chargers UK 2026

⚡ Key Takeaways

Affiliate Disclosure

What Is GaN Technology? (And Why It Matters)

40–50% Smaller

10–15 °C Cooler

93%+ Efficient

GaN vs Silicon — Side-by-Side Comparison

Top 5 GaN Chargers UK 2026 — Tested & Reviewed

Anker Prime 67W

Pros

Cons

UGREEN Nexode Pro 100W

Pros

Cons

Baseus GaN5 Pro 65W

Pros

Cons

Anker Nano II 45W

Pros

Cons

UGREEN Nexode 200W Desktop

Pros

Cons

Quick Comparison Table

How to Choose the Right GaN Charger

Match Wattage to Your Hungriest Device

Count Your Simultaneous Devices

Prioritise Portability or Power (Not Both)

Check Charging Protocols

Don't Ignore Safety Certifications

GaN I vs II vs III — What Changed?

Are GaN Chargers Safe? UK Certifications Explained

What to Look For in the UK

UKCA Mark

CE Mark

BS 1363 Plug

RoHS Compliant

Frequently Asked Questions

Related Guides

Best Anker Chargers 2026

Best UGREEN Chargers 2026

Best Phone Chargers UK 2026

Anker vs UGREEN — Brand Comparison

Charging Speed Calculator

Ready to Upgrade to GaN?