Power Comparison • Updated January 2025
Anker 737 GaNPrime 120W Charger vs Anker Prime 67W Charger
When Anker released both the 737 GaNPrime (120W) and the Prime 67W chargers, travelers were left wondering: do I really need 120W of power, or is 67W enough for my devices? It's a valid question—both chargers use GaN technology, both have multiple ports, and the price difference isn't dramatic.
Quick Verdict
Choose Anker 737 GaNPrime 120W Charger if:
- MacBook Pro 16" or other 100W+ laptop users
- Travelers who need to fast-charge multiple devices simultaneously
- Those who want maximum futureproofing for higher-wattage devices
- Power users running multiple USB-C devices at once
Choose Anker Prime 67W Charger if:
- Most laptop users (13-15" MacBooks, XPS, ThinkPads)
- Travelers who prioritize compact, packable gear
- Those who want the best value per watt
- iPhone/iPad + laptop travelers who don't need maximum speed
Head-to-Head Comparison
| Feature | Anker 737 GaNPrime 120W Charger | Anker Prime 67W Charger |
|---|---|---|
| Total Output | 120W | 67W |
| USB-C Ports | 2 ports | 2 ports |
| USB-A Ports | 1 port | 1 port |
| Size | 2.6" x 2.1" x 1.4" | 2.4" x 1.9" x 1.2" |
| Weight | 6.8 oz | 5.0 oz |
| Single Port Max | 100W USB-C | 67W USB-C |
| GaN Technology | GaN Prime | GaN II |
| Foldable Prongs | Yes | Yes |
Overview
When Anker released both the 737 GaNPrime (120W) and the Prime 67W chargers, travelers were left wondering: do I really need 120W of power, or is 67W enough for my devices? It's a valid question—both chargers use GaN technology, both have multiple ports, and the price difference isn't dramatic.
After months of testing these chargers across different travel scenarios—from coffee shop work sessions to international flights with multiple devices—we've developed a clear framework for who should buy which. The 737's extra wattage matters if you carry a power-hungry laptop. The Prime 67W is sufficient for most travelers and takes up less space.
The key question is: what devices are you traveling with? A MacBook Pro 16" user has different needs than someone with an iPad and iPhone. This comparison helps you match your gear to the right charger without overpaying for power you won't use.
Detailed Analysis
Power Output: When 120W Matters
The Anker 737 can deliver 100W to a single USB-C port, which means it can fast-charge a MacBook Pro 16" at full speed. When using multiple ports, it intelligently redistributes power—still delivering enough wattage to charge a laptop while topping off your phone.
The Prime 67W maxes out at 67W on a single port. This is still plenty for a MacBook Air, 13-14" MacBook Pro, most Windows ultrabooks, and all iPads. However, a MacBook Pro 16" will charge noticeably slower (about 50% slower at full load). If you carry a high-powered laptop, the 737 is worth the extra size.
Portability: Prime 67W Wins
For one-bag travelers and minimalists, every ounce matters. The Anker Prime 67W is 27% lighter (5.0 oz vs 6.8 oz) and measurably smaller. It slips easily into tech pouches, pants pockets, or the side pocket of a backpack.
The 737 isn't huge by any means—it's still a GaN charger—but the difference is noticeable when you're optimizing a carry-on. If you're already carrying a laptop, phone, charger, cables, and adapter, the Prime's smaller footprint adds up.
Multi-Device Charging: Similar Capability
Both chargers have the same port configuration: 2 USB-C + 1 USB-A. In practice, this means you can charge a laptop, phone, and watch/earbuds case simultaneously. The 737 has more headroom when doing so—charging a laptop at 65W while delivering 30W to your phone is no problem. The Prime 67W can still handle this scenario, but with tighter power allocation.
For most travelers charging overnight or during a work session, the difference is imperceptible. Devices get charged. The 737's advantage shows up in fast-charging scenarios when you're in a hurry.
Value & Practicality: Prime 67W Wins
The Prime 67W typically costs $20-30 less than the 737, and for 90% of travelers, it provides all the power they need. The "futureproofing" argument for 120W is weak—if devices required more power in the future, the 67W would still charge them, just not at maximum speed.
Unless you specifically know you need 100W charging (check your laptop's power adapter specs), the Prime 67W delivers better value. The saved money can go toward a good travel cable or power bank.
Frequently Asked Questions
Will the 67W charger damage my MacBook Pro 16"?
No, it won't damage it at all. Your MacBook will simply charge more slowly—likely 2+ hours to full instead of ~90 minutes. The laptop will intelligently draw only what the charger can provide.
Can either charger replace my laptop's brick?
Yes, both can replace your laptop charger for most laptops. The 737 fully replaces the MacBook Pro 16" brick (96W-140W). The Prime 67W replaces chargers for laptops up to 14" and can slow-charge larger laptops.
Which is better for international travel?
Both have universal voltage (100-240V), so they work worldwide with just a plug adapter. The Prime 67W's smaller size makes it slightly better for international one-bag travel.
Do I need both USB-C ports for my laptop?
No, laptops only need one USB-C cable. The second USB-C port is for your phone or tablet. Having two USB-C ports means you can charge multiple modern devices without relying on USB-A.
Our Recommendation
For most travelers: Anker Prime 67W Charger
The Anker Prime 67W wins for most travelers because 67W is sufficient for laptops up to 14-15 inches, it's more compact, and the three-port design covers phone, tablet, and laptop simultaneously. The 737's 120W is overkill unless you have a 16-inch power-hungry laptop.