Stay Connected, Stay Online

TOPSIM specializes in selling 4G SIM cards and Wi-Fi devices in the United States. Our mission is to keep users globally connected. We offer four trusted brands—SmartSIM, KiwiSIM, and TALKSIM—each designed to provide seamless connectivity for all your digital needs.

Sub-brand

Why Choose TOPSIM

  • 4G LTE network

    TOPSIM cards provide high speed 4G LTE network, and auto select top American top cellular carriers AT&T, T-Mobile, and Verizon

  • Pay as you go

    TOPSIM Card is a versatile and reliable solution for all your data connectivity needs.Our sim card provides transparent pricing data plans, no contract, no hidden fees, no activation fees, no tax, cancel your auto subscription anytime.

  • Easy devices connection

    TOPSIM cards perfect for a range of 4G unlocked IoT devices such as security cameras, router modems, mobile hotspots, smartwatches, cell phones, tablets, game/trail hunting cameras, 4G PoC walkie talkies, Android radios, and car/pet GPS tracker devices.

How TOPSIM card works

When using our TopSIM card, please make sure your device has correctly set the APN and turn on Roaming

How to set APN

How to activate TOPSlM card?

  • Step 1 : Make sure your device UNLOCKED
  • Step 2 : Read your device user manual to find APN setting
  • Step 3 : Fill in APN: unet (TALKSIM Card) or linksnet (SmartSIM&KiwiSIM)
  • Step 4: And restart your device

How to set APN on your iPhone?

Phone Settings=>Cellular=>Cellular Date=>Cellular DateNetwork=>enter the APN information=>Enable Date Roaming

  • APN name: TALKSIM /SmartSIM KiwiSIM
  • APN:unet / linksnet
  • Username and password do not need to be entered

Go to YouTube Video Tutorial

How to set APN on your Android Devices?

Phone Settings=>Mobile Network=>Select the card name=>Turn onDate Roaming=>Access Point Name(APN)=>NeW APN=>Enter the APNinformation

  • APN name: TALKSIM /SmartSIM KiwiSIM
  • APN:unet / linksnet
  • Username and password do not need to be entered

Go to YouTube Video Tutorial

How to set APN on your WiFi Router/Mobile Hotspot?

Turn off the device=>Insert the card and turn on=>Connect the deviceto computer using USB cable=>Follow the device instructions to findthe configuration page and configure APN

  • APN name: TALKSIM /SmartSIM KiwiSIM
  • APN:unet / linksnet
  • Username and password do not need to be entered

Go to YouTube Video Tutorial

How to set APN on camera?

Method 1：Insert the card into the phone, configure the APN of the card, and then insert the card into the camera.

Method 2：=>Power on the camera Press the "Reset" button for 5-10 seconds. After you hear the device say “system reset” Insert the card in the correct direction.

=>Enter the device's APPClick “Add a device” Then Click “Setup 4G Device”

=>Click “Blue light isn't constantly on? Click here” Click “Setup APN”

=>Click “Setup APN” Enter “linksnet” Click “OK”

=>After configuring the APN If the camera has not detected the card, you can let the device scan the QR code. If the card is detected the card, you can click“ Next”

  • APN name: TALKSIM /SmartSIM KiwiSIM
  • APN:unet / linksnet
  • Username and password do not need to be entered

Go to YouTube Video Tutorial

How to set APN on SmartWatch?

Phone Settings=>Cellular=>Cellular Date=>Cellular DateNetwork=>enter the APN information=>Enable Date Roaming

  • APN name: TALKSIM /SmartSIM KiwiSIM
  • APN:unet / linksnet
  • Username and password do not need to be entered

Go to YouTube Video Tutorial

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