Huawei E5577s-321 Mobile WiFi

Get mobile WiFi worldwide with this high speed portable hotspot.  All of our portable hotspots are unlocked so you can use any SIM card inside.

• 4G high-speed mobile hotspot
• Can connect up to 10 devices to the internet
• Fast download speeds of 150 Mbps
• Get online when you travel, in your car and on the move

Availability: In Stock In stock
Includes: Free data SIM & credit
  • £5Credit

  • £20Credit

  • £50Credit

  • £100Credit


Features of the Huawei E5577s-321 Mobile WiFi

A 4G Mobile hotspot with plenty of perks:

Power your devices
You can use the Huawei E5577s-321 Mobile WiFi to power your devices so you don’t have to worry about running out of battery.

Fast start up
With just 5 seconds to start up the Huawei E5577s-321 can get you online quickly.

Incredible battery life
With a massive 3000mah battery, this mobile hotspot has more than double the battery life of the average Mobile WiFi device.

Blog post: Which portable WiFi Router is right for your needs

Huawei MiFi hotspot E5577s-321 overview

What's Included?

Global Data SIM card for Huawei MiFi E5577s-321

Free Worldwide Data SIM

Get a free 3G worldwide data SIM so you can stay connected worldwide for less. The Huawei E5787 4G mobile hotspot comes unlocked so any SIM can be used inside.

Free credit included for Huawei MiFi E5577s-321

Free Credit

The Data roaming SIM card which is included with this Mobile WiFi device comes with free credit so you can start using it immediately, if you purchase this product with more credit you will get better value for money. Credit will expire only if the SIM isn’t used for a year.

USB cable for Huawei MiFi E5577s-321

USB Cable

Keep your Huawei MiFi charged with the included USB cable. Simply plug into a power source like a laptop on phone plug.


3000mah Battery

Benefit from an impressive 12 hours of battery life and up to 500 hours on standby.

4G connectivity

With 4G speeds on the Huawei E5577s-321 Mobile WiFi you can benefit from download speeds up to 150 Mbps.

10 devices

Connect up to 10 devices and start browsing online quickly with the 5 seconds start up.

Micro SD card slot

Support Micro Secure Digital Memory (microSD) cards of up to 32 GB, (micro SD Card not included).

LCD Screen

The LCD screen lets you know the remaining battery percentage and supports multiple languages.

Easy to use

The Huawei E5577s-321 Mobile WiFi is very easy to use, simply insert a SIM card and turn on the device to get online within 5 seconds.

OS Compatibility

The Huawei E5577s-321 is compatible with Windows XP SP3, Windows Vista SP1/SP2, Windows 7, Windows 8 (Does not support Windows RT), Windows 8.1; Mac OS x 10.7,10.8 and 10.9. Your computer’s hardware system should meet or exceed the recommended system requirements for the installed version of OS.

Full Technical Specifications

  • Brand: Huawei
  • Item model number: E5577s-321
  • Item weight: 281g
  • Product Dimensions: 11.8 x 8.4 x 8.4cm
  • Batteries: 1 Lithium ion batteries required (included)
  • Lithium Battery Weight: 7g
  • Lithium Battery Energy Content: 3000mah
  • Battery life: 6 hours, up to 300 on standby
  • Colour: White and Black
  • Connectivity: 4G

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Find Out More

What our users say about this product

Hear about people's experience with this product, the SIM and our service

Rating stars

Great! Just plug & play!

Bought this and used it on my unlocked Huawei mifi router, by just setting the correct APN, it was good to go! However, take note of the rates offered by the network carrier you are roaming in. Within any country, some carriers are priced cheaper than others, so be sure to check out their website to see which carrier offers the cheapest rates to maximise your credits.

Lee - ProductReview.com

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Rating stars

My WorldSIM experience was just what I was hoping for

Activating the service was immediate – just turned on my phone and I was connected. As I traveled through six countries, I always had efficient service to call a local restaurant or to call home thousands of miles away.

James G - ProductReview.com

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Rating stars

Best SIM on the market

It’s great that wherever I am in the world my family, friends and work colleagues can be in touch. Also I'm able to conduct business wherever I roam without clients even knowing I'm not at home or in my office

Tony - ProductReview.com

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Rating stars

WiFi on the spot

It's great knowing you have wifi when you really need it and when your somewhere you can't find it. Having WorldSim is like having extra security and peace of mind. Thank you for your service and reliability.

Johnny - ProductReview.com

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Rating stars

This product and service is Amazing! Highly recommend

I purchased the World SIM a few months back and since then I have used it in various countries with great satisfaction. The pricing structure is very competitive and service is highly reliable. If you travel to various countries and need a great world product then this SIM is the right move.

Tom - ProductReview.com

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