Anker 737 Power Bank vs. Anker Prime Power Bank: Which High-Capacity Bank Should You Buy?

When you need to keep a laptop, tablet, and phone charged on the go, a high-capacity power bank is essential. Anker offers two standout options: the Anker 737 Power Bank (PowerCore 24K) and the Anker Prime Power Bank (20K, 220W). Both pack serious power, but they cater to different needs. In this comparison, we'll break down their features, performance, and portability to help you decide which one deserves a spot in your bag.

Whether you're a frequent traveler, remote worker, or content creator, the right power bank can mean the difference between a productive day and a dead battery. We'll examine capacity, output, design, and charging speed to see how the Anker 737 and Anker Prime stack up against each other.

Capacity and Battery Size

The most obvious difference is battery capacity. The Anker 737 Power Bank, also known as the PowerCore 24K, boasts a 24,000mAh cell. That's enough to charge a typical smartphone about four times or a MacBook nearly once. It's a hefty reserve for long weekends or back-to-back meetings away from an outlet.

In contrast, the Anker Prime Power Bank (20K, 220W) has a 20,000mAh capacity. While slightly smaller, it still delivers multiple charges for your devices. The trade-off is a more compact form factor that slips easily into a backpack or even a large pocket. If you rarely need more than one full laptop charge, the Prime's capacity is often sufficient.

• Anker 737: 24,000mAh – ideal for extended trips or power-hungry laptops
• Anker Prime: 20,000mAh – balances capacity with portability

Charging Speed and Output Power

When it comes to output, the Anker Prime Power Bank is the clear winner. It delivers up to 220W total output, with a single USB-C port capable of 140W – enough to fast-charge even the most demanding laptops like the 16-inch MacBook Pro. This is a game-changer for professionals who need to top up quickly between tasks.

The Anker 737 Power Bank offers a maximum of 140W total output, with a single port at 100W. That's still plenty for most ultrabooks and tablets, but it will charge larger laptops more slowly. If you rely on a high-wattage laptop and value speed, the Prime's extra power makes a noticeable difference.

• Anker Prime: 220W total, 140W single port – fastest charging for big laptops
• Anker 737: 140W total, 100W single port – adequate for most devices

Ports and Compatibility

Both power banks feature two USB-C ports and one USB-A port, giving you plenty of flexibility. You can charge a laptop, phone, and earbuds simultaneously without sacrificing speed. The Anker Prime adds smart power distribution, automatically adjusting output to each device for optimal charging.

The Anker 737 also supports multi-device charging, but its power allocation is less dynamic. If you're charging a laptop and a phone at the same time, the laptop will get priority, and the phone may charge slower. For most users, both setups work well, but the Prime offers a more refined experience.

• Both have 2x USB-C and 1x USB-A
• Anker Prime features smart power distribution for efficient multi-device charging

Design and Portability

The Anker 737 Power Bank has a rugged, utilitarian design with a built-in display that shows remaining battery percentage. It's a bit larger and heavier due to the higher capacity, but the display is a handy feature for keeping track of your power reserve.

The Anker Prime Power Bank, on the other hand, features a sleek, modern design with a smart display that shows charging status and wattage. It's also slightly smaller and lighter, making it easier to carry every day. If you prioritize aesthetics and portability, the Prime is the better choice.

• Anker 737: built-in battery percentage display, rugged feel
• Anker Prime: smart display with wattage info, more compact

Which One Should You Choose?

Your decision ultimately comes down to your specific needs. If you frequently travel for days without access to outlets and need maximum capacity, the Anker 737 Power Bank (PowerCore 24K) is a reliable workhorse. It's also a great option if you don't mind a bit of extra bulk in exchange for peace of mind.

If you're a professional who needs to charge a high-wattage laptop quickly and value a sleek, portable design, the Anker Prime Power Bank (20K, 220W) is worth the investment. Its superior output and smart features make it a versatile companion for daily commutes and business trips.

• Choose Anker 737 for maximum capacity and a battery display
• Choose Anker Prime for faster laptop charging and a compact design

Both the Anker 737 Power Bank and Anker Prime Power Bank are excellent high-capacity options, but they serve different users. The Anker 737 offers more juice for long trips, while the Anker Prime delivers faster charging and better portability. If you need the ultimate in portability and speed, consider the Anker Prime Power Bank for your next adventure.