Anker 737 vs Anker Prime 26K: Power Bank Comparison
Anker 737 vs Anker Prime 26K compared on output, capacity, ports, size, cable and warranty, based on the manufacturer listings.
By GadgetsDiary Editorial Team
Updated November 12, 2026
Safety: Power banks contain lithium-ion cells. Use the cables the manufacturer supplies or recommends, keep the unit away from heat, and follow the manual.
The Anker 737 and the Anker Prime 26K are two of the highest-output laptop banks in the Anker range. Both list 140W for fast laptop charging, but the Prime adds a much higher total output, a larger battery and app control.
This comparison is based on the manufacturer listings for both models. It is meant for buyers choosing between a proven 140W bank and a 300W bank. See more options in our Laptop Power Banks category.
At a Glance
| Feature | Anker 737 Power Bank | Anker Prime 26,250mAh 300W Power Bank |
|---|---|---|
| Capacity | 24,000mAh | 26,250mAh (99.75Wh) |
| Output | 140W with PD 3.1 | 300W total, up to 140W fast charging |
| Ports | 3, types not listed | 2 USB-C, 1 USB-A |
| Dimensions | 6.13 x 2.14 x 1.95 inches | 6.3 x 2.5 x 1.5 inches |
| Weight | 1.39 pounds | 1.32 pounds |
| Cable | 140W USB-C cable | 3.3 ft 240W USB-C cable |
| Display | Smart display | Smart display and app control |
| Warranty | 24 months | 24 months |
Anker 737 Power Bank, 140W 24,000mAh 3-Port Laptop
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
Anker Prime Power Bank, 26,250mAh 300W
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
Output and Charging
Both banks list up to 140W for charging a laptop, and both note that full speed needs a 5A cable. The difference is the total: the Prime lists 300W across three ports, while the Anker 737 does not give a combined figure.
If you charge one laptop at a time, the single-port figure is the same. If you charge two demanding devices, the Prime lists the output to support it, and the manufacturer says it can keep two MacBook Pros running at full speed.
Capacity, Size and Weight
The Prime lists 26,250mAh and 99.75Wh against 24,000mAh for the 737. By the listed dimensions it is thinner (1.5 against 1.95 inches) but wider (2.5 against 2.14 inches), and it is lighter at 1.32 pounds against 1.39 pounds.
Both are described by Anker as suitable for airline carry-on. Airlines set limits by watt-hour rating, so check the rating printed on the unit and your airline policy.
Ports, Cables and Extras
The Prime lists two USB-C ports and one USB-A port, and a 240W cable in the box. The 737 lists three ports without naming their types and includes a 140W cable.
The Prime adds app control for adjusting output, while the 737 relies on its display. Both list a 24-month warranty.
Which One Should You Buy
| Choose the Anker 737 Power Bank if | Choose the Anker Prime 26,250mAh 300W Power Bank if |
|---|---|
|
|
Final Verdict
The Anker 737 is the simpler choice for one high-wattage laptop, with a 140W cable and a display. The Anker Prime 26K is the stronger choice if you charge several demanding devices, since it lists 300W total and more capacity in a slightly lighter body. Match the bank to your charger rating and confirm airline rules for the exact rating before you fly. See the Anker 737 Power Bank or the Anker Prime 26,250mAh 300W Power Bank on Amazon.
Frequently Asked Questions
Which is better for one laptop?
Both list 140W for a single laptop. The Anker 737 is the simpler product, while the Prime offers extra output you may not use.
Which holds more?
The Anker Prime 26K lists 26,250mAh and 99.75Wh, compared with 24,000mAh for the Anker 737.
Do both come with a cable?
Yes. The 737 includes a 140W cable and the Prime includes a 3.3 ft cable rated for 240W.
Can I take either on a plane?
Anker describes both as suitable for airline carry-on. Check the rating on the unit and your airline policy.
About the author
The GadgetsDiary editorial team compares portable power and charging products using manufacturer specifications and Amazon listing data. Read how we choose and rank products on our How We Review and Editorial Policy pages.