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4G LTE-Advanced USB WiFi Dongle & Mobile Hotspot Router – Portable Modem with Pre-Installed SIM Card – Ideal for Travel and Camping - for North America and EU (Require Subscription)

  • Based on 42 reviews
Condition: New
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$39.00 Why this price?
Presidents' Day Sale · 9% off was $43.00

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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Feb 18
Order within 14 hours and 33 minutes
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Features

  • WiFi USB Dongle Router This compact, USB-powered dongle acts as a mobile WiFi hotspot by connecting to 4G LTE cellular networks to provide internet access for your laptop, tablet, or phone. Simply plug it in to power and enjoy portable connectivityno home cable or broadband required. Works in US, Canada, Mexico and most European countries.
  • Wide Network Compatibility Use AT&T and T-Mobile networks for extensive coverage and fast 4G LTE performance. Typical download speeds range from 515 Mbps, sufficient for smooth video streaming. Supports full key LTE bands in both US, Canada, Mexico and European countries to deliver strong, stable connectivity. Fully support Bands B1, B2, B3, B4, B5, B7, B8, B12, B17, B20, B28, B38, B40, B41, and B68.
  • Pre-Installed SIM Comes with a Spectrum SMART SIM card pre-installed. A cellular data plan is required and not included with purchase. Activation and subscription must be completed via the official Spectrum SIM website.
  • Connect Multiple Devices Seamlessly share your internet connection across multiple devices at once. Ideal for families, remote teams, or small businesses. Provides fast, stable WiFi for laptops, smartphones, tablets, and morewhether at home or on the go.
  • USB-Powered for Convenience No bulky adapters needed! Simply plug into any USB portlaptop, power bank, or car chargerfor instant internet access.
  • This product is not affiliated with Charter Communications, Spectrum Cable, or Spectrum Mobile.

Brand: Spectrum Smart


Model Name: Puffin Smart


Special Feature: Long-Range 4G LTE Connectivity Provides reliable internet access even in remote areas, perfect for travel or outdoor use., Support for 8 Devices Seamlessly connects multiple devices, making it perfect for families, teams, or small businesses. See more


Frequency Band Class: Single-Band


Wireless Communication Standard: 802.11ac


Compatible Devices: Laptop, Personal Computer, Smart Television, Smartphone, Tablet


Recommended Uses For Product: Enhances Wi-Fi reception in low-signal areas, Ideal for laptops, PCs, smart TVs, and gaming consoles, Perfect for travel, remote work, and temporary internet setups, Portable Wi-Fi hotspot for travel, camping, and road trips, Provides a personal hotspot for hotels, dorms, or shared spaces, Reliable internet access for RVs, cabins, and remote work sites, Supports HD video streaming, video calls, and large file transfers See more


Included Components: Spectrum Smart SIM Card, USB Router


Connectivity Technology: LTE, 4G


Color: white


Product Dimensions: 1.55 x 1 x 3.95 inches


Item Weight: 2.08 ounces


Item model number: Puffin Smart


Date First Available: January 8, 2025


Manufacturer: Spectrum Smart


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good bang for buck
Works as advertised!!! Connects fast and works great!!!
Reviewed in the United States on January 25, 2026 by FRANK FETTI

  • Perfect for vacation!
Wonderful! I bought this recently for my son to use his tablet on a long drive for vacation. I was surprised at how EASY it was to set up. Initial setup took maybe 5 minutes, and then you just plug it into a USB port. It automatically finds signal (very quickly). You do have to add data like you would with any other similar product, however I only spent $35 total for the whole trip (12 hours there and back and only used in the car) and he was on his tablet quite a bit. I think it is without a doubt worth the money. There is still data left over, and I’m glad I have it for future use. Also, it is very small. I could plug it into and close the console. I did unplug it when he was off of the tablet to save data. ... show more
Reviewed in the United States on August 17, 2025 by Hilary Perry

  • Great WiFi solution!!
Worked wonderful! Support response was great when needed and subscription is flexible. Thanks Marie!!
Reviewed in the United States on January 9, 2026 by katelaw

  • The monthly plans don’t last one day! Not even the $10 or $20 plans, smh
I got this so I could use for my business while working on my laptop. The setup was easy to do but the service didn’t last one day!!! It basically just eats off all your money that was supposed to last you for a whole month until it times to renew. I think this will only suck you dry for your money since it will not work unless you add another monthly plan. I’m sending mine back. ... show more
Reviewed in the United States on January 1, 2026 by Amazon Customer

  • Best 4G LTE Modem/Hotspot I've tried
Fast shipping, fast speeds, & most flexible data plans on 4G LTE. Great travel modem & wi-fi hotspot on the go and/or backup internet connection for home.
Reviewed in the United States on December 11, 2025 by Stacy

  • Didn’t work for me
Terrible internet I had to send it back because it didn’t work for me like I wanted it too. Bit customer service did give me my money back for an extra purchase that wasn’t supposed to go through however you can’t call you have to communicate through email.
Reviewed in the United States on December 18, 2025 by Hope

  • Works as it should
Works as it should. Provides me internet access on the go. It isn't blazing fast but gets routine tacks accomplished
Reviewed in the United States on November 14, 2025 by Gary

  • Quick and Easy setup of 4G LTE Mobile Hot Spot
The LTE Dongle from Spectrumsim was easy to setup and get it working. The support team was excellent and responded quickly to resolve any issues. Never expected that it would be so easy.
Reviewed in the United States on December 29, 2025 by Chandan Chowdhury

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