SIM Cards $90.00
★★★★★ 4.2/5 18,520 ratings A 3-month Mint Mobile prepaid plan that includes unlimited nationwide talk and text, plus unlimited data with potential speed slowdowns after 50GB during busy times. It uses a 3-in-1 SIM (standard, micro, nano) for unlocked devices on the T-Mobile network, with setup done through the Mint app or website. Best for budget-minded buyers who want a simple, no-contract way to test Mint, but data throttling during congestion and number-port issues may be deal-breakers for some.
SIM Cards $75.00
★★★★★ 4.2/5 18,522 ratings Mint Mobile’s 3-month prepaid phone plan bundles unlimited talk and text with 20GB of 5G-4G LTE data per month, plus features like Wi‑Fi calling and mobile hotspot. It’s a strong fit for budget-focused buyers who already have an unlocked phone, but your experience will depend on your coverage area and setup/porting support.
SIM Cards $40.99
★★★★★ 3.6/5 1,623 ratings A 30-day T-Mobile prepaid SIM aimed at travelers and short-term users who want unlimited talk and text plus unlimited 4G LTE data in the US. The biggest things to know are that it must be used in an unlocked GSM phone, hotspot use is limited (3G tethering), and data may slow after 50GB under a fair usage policy. Plan for activation, since it is not ready to use right out of the package.
SIM Cards $119
★★★★★ 4.5/5 432 ratings The EIOTCLUB Data SIM Card for 360 Days is a data-only LTE SIM kit designed for unlocked IoT devices like 4G trail and security cameras, routers, and similar cellular hardware in the U.S. It’s intended to work with AT&T and T-Mobile networks, supports three SIM sizes via a pre-cut kit, and is positioned as a no-contract, long-duration plan. The main thing to double-check before buying is network band compatibility and that your device supports the required APN settings (with a U.S. APN of america.bics).
SIM Cards $15.90
★★★★★ 4/5 2,911 ratings A short-stay Japan data SIM for travelers who want easy setup and solid coverage on the Docomo network. It includes 10GB of high-speed 4G LTE for up to 15 days, then speeds drop to under 128 kbps for the remainder of the period. Best for travelers with compatible unlocked devices, and especially for those who want hotspot tethering.
SIM Cards $15.99
★★★★★ 4/5 2,847 ratings This 2-pack, triple-cut T-Mobile SIM starter kit is designed for shoppers who need authentic carrier SIMs that can work across standard, micro, and nano slots. It’s built for GSM-based 2G/3G/4G LTE devices and is generally intended for T-Mobile postpaid compatibility, with an important cut-off date for post-July 1, 2020 use. The main buying caveat is that activation outcomes can depend on correct plan type and account setup.
SIM Cards $19.00
★★★★★ 3.9/5 2,015 ratings Ultra Mobile’s $19/month prepaid plan is built for people who want T-Mobile 5G coverage on a no-contract, 1-month basis, with unlimited nationwide talk and global texting plus 4GB of high-speed data. The big buying caveat is that setup and account behavior can be confusing for some phones, and the data allotment is limited (it is not truly unlimited high-speed data).
SIM Cards $11.00
★★★★★ 3.4/5 3,150 ratings A budget-friendly prepaid SIM plan built for unlocked 4G/5G phones, offering unlimited talk and text plus 3GB of LTE/5G data on a 30-day cycle. It can be a solid fit for light data users, but activation and auto-renew management can be a pain point for some shoppers.
SIM Cards $4.88
★★★★★ 4.2/5 5,786 ratings This 3-in-1 Tracfone SIM kit is designed for bring-your-own-phone (BYOP) activation on Tracfone’s prepaid network, with universal sizing (nano, micro, standard) and support for compatible, unlocked phones. It’s a practical choice for budget-focused shoppers who just want their device working, but it can be confusing to match SIM/network requirements, and compatibility matters.
SIM Cards $8.89
★★★★★ 4.1/5 3,047 ratings A single 3-in-1 Verizon 4G LTE SIM card that you can punch to fit standard, micro, or nano slots. Best for Verizon prepaid or postpaid customers who need a replacement SIM fast, with the main caveat that it is not compatible with MVNOs and it does not support NFC.
SIM Cards $27.47
★★★★★ 4/5 897 ratings This preloaded Orange travel SIM is designed for trips across a long list of European destinations, offering 20GB of 4G data plus unlimited calls and SMS within Europe, with additional allowances for calls and texts to the rest of the world. The main tradeoff is that voice and messaging depend on the SIM working cleanly with your phone model and your device truly being unlocked, and some buyers report occasional setup or country-side prompting quirks.
SIM Cards $2.90
★★★★★ 3.4/5 5,330 ratings The SpeedTalk Mobile Pre-Paid eSIM and SIM Card Starter Kit is designed for shoppers who want prepaid-style wireless service without a long-term contract. It supports both a 3-in-1 physical SIM and eSIM activation (on compatible iPhone, Pixel, and select Samsung models), with an unlimited talk and text plan that includes 11 GB of high-speed data each month before speeds reduce. The main caveat is that online activation and number porting can take time, and there can be plan-use confusion for some customers if they are not watching data usage closely.
SIM Cards $2.90
★★★★★ 3.4/5 5,095 ratings The SpeedTalk Mobile SIM Card Starter Kit is a 3-in-1 (standard, micro, nano) physical SIM plus an activation path for eSIM on compatible iPhone, Google Pixel, and Samsung phones. It is aimed at prepaid, month-to-month use on unlocked devices with U.S. 5G/4G LTE coverage, including phones, hotspots, GPS trackers, and other IoT devices. The main catch: the experience depends heavily on whether your specific device and use case are compatible with the plan and activation process.
SIM Cards $12.68
★★★★★ 4.3/5 1,084 ratings The Straight Talk BYOP CDMA 3-in-1 SIM kit is designed to activate eligible Verizon-compatible CDMA phones on Straight Talk prepaid service. It includes a triple-cut SIM (micro, nano, standard) for easier fit, but it will not work on GSM-based phones, so device compatibility is the biggest buying caveat.
SIM Cards $27.45
★★★★★ 4/5 474 ratings The Orange Holiday Europe Prepaid SIM is a plug-and-play option for travelers who need 20GB of mobile data across many European countries, with hotspot (data tethering) and roaming calls/texts from Europe. The main caveat is that reliability can vary by destination and your phone setup, and the plan is tied to a 30-day credit window after first use (with optional registration for longer use).
SIM Cards $3.00
★★★★★ 4.3/5 3,743 ratings Tello Mobile’s 3-in-1 prepaid SIM kit is built for shoppers who want low-cost, customizable plans without a contract. It’s a good fit if your phone is unlocked, VoLTE-capable, and you’re comfortable verifying coverage first, since some buyers report weaker performance and missed texts in lower-signal areas.
SIM Cards $5.00
★★★★★ 3.4/5 1,999 ratings This $5 preloaded SIM kit is designed for kids GSM GPS and activity-tracking smart watches in the US, pairing a 30-day service plan (50 minutes, 100 texts, and 100MB) with a selectable US phone number at activation. The biggest buying caveat is coverage and watch compatibility, since activation can fail if service is not available in your area or if the watch does not support the required cellular profile.
SIM Cards $4.88
★★★★★ 4/5 2,036 ratings The Verizon Prepaid BYOP SIM Kit is a 3-in-1 SIM card (Standard/Micro/Nano) designed to activate an unlocked, compatible phone on Verizon’s Prepaid network with no contracts or credit checks. The main buying caveat is that keeping your number can take longer and may be sensitive to the timing of your current carrier’s release.
SIM Cards $39.98
★★★★★ 3.5/5 246 ratings The KiwiSIM USA Data SIM Card gives you 12GB of data over 180 days on 4G LTE, built for unlocked devices that need mobile internet without calls or texts. It can automatically choose among AT&T, T-Mobile, and Verizon, but setup requires correct APN configuration and it may affect location-based streaming.
SIM Cards $3.99
★★★★★ 4.2/5 2,277 ratings US Mobile’s prepaid SIM kit comes with two SIM cards for its Warp and Dark Star networks, making it a practical option if you want flexibility and straightforward activation. Review evidence suggests reliable connectivity in cities and good value for budget-minded shoppers, with the main caveat being that rural performance and hotspot needs may vary by plan and location.
SIM Cards $32.88
★★★★★ 4.3/5 239 ratings A Mainland China-focused 5G physical SIM from China Unicom, bundled with 20GB of data plus 300 minutes of talk and 300 domestic texts. Best for travelers who want a real Chinese phone number for common apps and services, with the main caveat that activation requires step-by-step setup and passport verification, and the SIM is Mainland China use only.
SIM Cards $5.00
★★★★★ 4.1/5 1,422 ratings An easy, data-only SIM for 4G/5G LTE devices in the U.S., designed for cameras, hotspots, and other cellular connectivity needs with no voice or SMS. The biggest buying caveat is compatibility, especially around supported network bands and APN settings.
SIM Cards $26.99
★★★★★ 4/5 254 ratings A prepaid Orange Europe SIM built for travelers who want reliable 4G/5G data and simple in-region calling for about a month. It supports tethering and hotspot use, includes a French phone number, and skips registration, but it is only for unlocked phones and requires roaming to be enabled.
SIM Cards $8.95
★★★★★ 3.9/5 734 ratings A triple-cut (3-in-1) Verizon SIM kit from SIMBROS that lets you use one card across Standard, Micro, and Nano slots (4FF/3FF/2FF). It supports Verizon 4G and 5G on prepaid or postpaid accounts, but it is not for MVNO plans and it does not support NFC.
SIM Cards $8.99
★★★★★ 4/5 672 ratings The SIMBROS T-Mobile SIM Card R15 5G LTE starter pack is designed for T-Mobile activation and includes a triple-cut SIM plus a SIM removal pin to help you get a compatible device online quickly. It’s a practical option for reviving an older phone, but it won’t work on Metro PCS or other carriers, and there’s limited review evidence around activation reliability for every device.
SIM Cards $6.94
★★★★★ 4.1/5 761 ratings EIOTCLUB’s triple-play 5G/4G LTE data SIM is designed for US-based IoT devices, especially security and trail cameras. It supports multiple nationwide networks and is positioned as no-contract and plug-and-play, but buyer success depends heavily on device band compatibility and choosing the right plan for your data needs.
SIM Cards $34.99
★★★★★ 3.4/5 123 ratings This T-Mobile prepaid SIM is built for new activations who want unlimited talk and text in the U.S. plus unlimited high-speed data on T-Mobile’s LTE network for 30 days, with additional 5GB data available in Canada and Mexico. The main catch is that it must be activated through the seller (it will not work before activation) and it is not a refill or number-transfer option.
SIM Cards $4.75
★★★★★ 4/5 767 ratings The Puffin Smart Data Only SIM Card is designed for unlocked 4G/5G devices that need cellular connectivity without voice service, making it a practical fit for security cameras, hotspots, dashcams, and GPS trackers. It uses both AT&T and T-Mobile networks and can switch between them when one is weak, but you will need to activate it and choose a data plan (the SIM does not come with preloaded data).
SIM Cards $7.00
★★★★★ 3.8/5 446 ratings The EIOTCLUB data-only SIM card is designed for unlocked mobile hotspots and routers, using US 4G/5G LTE connectivity. It includes 1GB of prepaid data valid for 30 days and comes in 3 cut sizes (standard, micro, nano), but you may need to verify US band support and manually set the APN to america.bics to avoid defaulting to a Belgium IP.
SIM Cards $5.00
★★★★★ 4/5 548 ratings The Boost Mobile SIM Kit pairs a 3-in-1 SIM (plus optional eSIM activation) with a $25/month forever Unlimited plan that includes unlimited talk, text, and 30 GB of premium high-speed data. It’s a strong fit for budget-focused shoppers with an unlocked, US 4G+ phone, but activation can be fiddly and billing can vary if AutoPay or plan expectations are not aligned.