What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Before switching, verify coverage where you actually use your phone, calculate the full cost of leaving and joining, and confirm that your exact handset can use the new carrier’s network. Then arrange any number transfer, prepare for carrier-specific setup changes, and back up data before moving to a different phone brand. You may not need a new phone at all.
1. Will the new carrier work where you need it?
Start with the places and routes that matter to you: home, work, school, regular commutes, and destinations you visit often. Check each candidate provider’s current coverage information for those locations, rather than relying on a broad national coverage claim. Coverage can vary within a city or even between nearby buildings, and a map cannot guarantee the signal you will experience indoors or on your specific routes.
As an Amazon Associate I earn from qualifying purchases.
Also consider what you use the connection for. If you depend on mobile data, calls, texts, or a particular feature while travelling, check whether the plan and network meet those needs in the places you use them. Coverage information and plan availability are location-specific, so verify them with the provider before committing.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 112. What will switching actually cost?
Compare the total cost of leaving your current service and starting the new one—not just the advertised monthly price. Your current account may have a remaining device balance or an early termination charge, depending on its terms. Verizon advises customers to check those amounts with their current carrier before transferring service (Verizon’s number-transfer guidance).
#1 Best Overall
- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
- Ask your current provider for any device balance and contract exit charge that would apply to your account.
- Review the destination plan’s recurring charge and any taxes or fees shown during checkout.
- Read promotion conditions, including how long a discount lasts and what you must do to qualify.
The amount due depends on your account and contract. Do not assume that switching will save money until you have compared the charges and terms that apply to you.
3. Does the plan fit how you use your phone?
Check the plan’s limits and conditions against your normal use. Look for details that matter to you, such as data allowances or restrictions, calling and texting terms, roaming, hotspot use, and any eligibility conditions attached to a promotion. Providers and countries differ, so rely on the destination carrier’s current plan terms rather than assuming that similarly named plans work the same way.
Rank #2
- Blazing-fast Qualcomm performance. Get the speed you need for great entertainment with a Snapdragon 680 processor and 4GB**** of RAM.
- Fluid display + immersive stereo sound. Bring your entertainment to life with an ultrawide 6.5" 90Hz* HD+ display plus stereo speakers, Dolby Atmos, and Hi-Res Audio**.
- 50MP*** Quad Pixel camera. Capture sharper, more vibrant photos day or night with 4x the light sensitivity.
- 64GB**** built-in storage. Get plenty of room for photos, movies, songs, and apps—and add up to 1TB more with a microSD card*****.
- Unbelievable battery life. Work and play nonstop with a long-lasting 5000mAh battery.*****
If you are comparing providers, use the same checklist for each: coverage at your usual locations, recurring and one-time costs, relevant plan conditions, and support for your phone’s SIM or eSIM setup.
4. Will your current phone work with the new carrier?
Check the exact phone model—not only its brand or the fact that it is unlocked. Confirm that the destination carrier accepts that model, that the phone is unlocked for use with another provider, and that it supports the carrier’s physical SIM or eSIM activation method. Verify any network features you rely on as well.
Rank #3
- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with other CDMA carriers, and it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
- Camera: 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 2 MP, f/2.4, (macro). Battery: 5000 mAh, non-removable | A power adapter is NOT included.
A compatibility check is useful, but it does not promise that every feature or performance detail will match a carrier’s own devices. T-Mobile cautions that it cannot test all performance and feature behavior on non-T-Mobile devices (T-Mobile’s bring-your-own-device guidance). Ask the destination carrier about any must-have feature before switching.
If the handset is not compatible or cannot be unlocked, ask the carrier what options are available before buying anything. If a replacement is genuinely needed, an unlocked smartphone that the destination carrier confirms is compatible is one option; keeping your current phone is preferable when it meets your needs and passes the checks.
Rank #4
- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with Verizon, Spectrum, AT&T, Total Wireless, other CDMA carriers, it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
- 4G LTE Bands: B1/B3/B5/B7/B8/B20/B28/B38/B40/B41
- Display: Super AMOLED, 90Hz, 800 nits (HBM) | 6.7 inches, 110.2 cm2 (~86.0% screen-to-body ratio) | 1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
- Camera: 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 2 MP, f/2.4, (macro)
5. Can you keep your number?
Number-transfer rules depend on your country and providers. Contact the receiving carrier and follow its current instructions before cancelling service or starting a transfer. Do not assume that a process, code, or timeline used in one country applies elsewhere.
If you are switching in the UK
Ofcom’s UK Text to Switch process uses a PAC when you want to keep your number, or a STAC when you want to switch provider without keeping it. Request the relevant code and give it to your new provider as directed by Ofcom (Ofcom’s Text to Switch guidance). Ofcom also says that in most cases a number can still be transferred within one month of cancellation (Ofcom’s mobile switching guidance); check its current instructions for your circumstances.
Best Value
- GSM Unlocked: Enjoy seamless connectivity with your preferred GSM carrier. Compatible with T-Mobile, Metro PCS, AT&T, Cricket, Mint Mobile and other GSM networks. SIM card not included. For network compatibility, please check with your carrier. Note: Not compatible with CDMA networks like Verizon (Visible, Spectrum Mobile, US Mobile, Total Wireless, Straight Talk Wireless)
- Boundless Views: Enjoy immersive viewing on the spacious 6.5” HD+ display. Whether you're watching videos, browsing, or gaming, every detail comes through with stunning clarity.
- Smooth Performance, All Day: Powered by an efficient octa-core processor, the G35 ensures smooth performance for your everyday tasks. Enjoy faster app launches, seamless multitasking, and reliable speed.
- Snap, Share, Repeat: The G35 features a dual rear camera setup for sharp, detailed shots, and a front-facing camera that’s perfect for selfies and video calls. Capture every moment with ease and clarity.
- Effortless Access: Keep your phone secure with A.I. Face ID technology. Instantly unlock your G35 with just a glance. It's fast, easy, and secure.
6. What changes when you move the phone or change brands?
Changing carriers may involve more than moving a SIM. Depending on the phone and provider, you may need to activate a physical SIM or eSIM, update settings, or follow the carrier’s activation steps. Apple describes several ways to activate an eSIM on iPhone, with the available method depending on the carrier and situation (Apple’s eSIM activation instructions).
Samsung notes that carrier branding, network configuration, features, and system apps on a Galaxy can change when the phone changes carriers (Samsung’s carrier-change guidance). Before moving to another phone brand, use the manufacturers’ current instructions to transfer your contacts, photos, messages, and other important data. A SIM change alone does not move your personal data or guarantee that every carrier feature will remain available.
7. How to prepare and check service after activation
Before the switch
- Write down the locations where reliable coverage matters and check each provider there.
- Get the actual costs and conditions for leaving your current plan and joining the new one.
- Confirm the exact handset’s unlock status, compatibility, and SIM or eSIM activation options with the new carrier.
- If keeping your number, follow the receiving carrier’s and local regulator’s transfer instructions.
- If changing phones or brands, back up important data and follow the relevant manufacturer’s transfer steps.
After activation
Test the services you depend on: make and receive a call, send and receive a text, use mobile data, and check voicemail. Also test any phone or carrier feature that matters to you. If something does not work, contact the new carrier with the exact phone model and describe the issue; the fix may depend on the device, network, or activation method.
Free tools Windows power users keep installed
One-click scans. No signup required.
Unlock rules, fees, coverage, device eligibility, number-transfer steps, and eSIM availability vary by country and provider. Confirm the details that apply to your location, account, plan, and exact phone before making the change.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
