Samsung Galaxy Z Flip 4 5G, US Version, 256GB, Graphite - Unlocked (Renewed)
Condition: Refurbished - Excellent
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FREE 90-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Sunday, Jul 12
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Color: Graphite
Service provider: Unlocked
Memory Storage Capacity: 256 GB
Product grade: Renewed
Features
- The 6.7 Dynamic AMOLED 2X foldable main screen supports an adaptive 48120 Hz refresh rate and HDR10+, offering incredibly fluid motion for gaming, media playback, and split-screen multitasking when using Flex Mode.
- On the outside, a 1.9 Super AMOLED cover display gives you quick access to notifications, calls, music controls, and widgets without needing to unfold the device, making it convenient for one-handed or pocket use.
- Built for performance, its powered by the Snapdragon 8+ Gen 1 processor paired with 8 GB of RAM and up to 512 GB of UFS 3.1 storage (depending on model), enabling fast app launches, strong 5G connectivity, and reliable multitasking.
- The dual rear camera system features a 12 MP wide lens with OIS plus a 12 MP ultra-wide lens, letting you shoot stable, high-quality photos and 4K video, while the 10 MP front camera handles crisp selfies and video calls.
- Designed with durability and security in mind, the Flip4 has an IPX8 water-resistance rating, an Armor Aluminum frame for added structural strength, a side-mounted fingerprint sensor, and Stereo speakers to deliver rich sound when watching media or flipping the phone open.
Description
Introducing the Samsung Galaxy Z Flip 4 SM-F721U, a remarkable fusion of style and functionality. Elevating your smartphone experience with its innovative design, this device seamlessly combines cutting-edge technology with a sleek, compact form factor. With its revolutionary foldable display, the Galaxy Z Flip 4 offers a unique and immersive viewing experience. From streaming your favorite content to multitasking with multiple apps, the flexible screen adapts to your needs, providing unparalleled versatility.
Brand: Samsung
Operating System: Android
Ram Memory Installed Size: 8 GB
CPU Model: Snapdragon
CPU Speed: 2.75 GHz
Memory Storage Capacity: 256 GB
Screen Size: 6.7 Inches
Resolution: 1080 x 2640
Refresh Rate: 120 hertz
Model Name: Galaxy Z Flip4
Operating System: Android
RAM Memory Installed: 8 GB
Processor Series: Snapdragon
Processor Speed: 2.75 GHz
Memory Storage Capacity: 256 GB
Color: Graphite
SIM Card Slot Count: Single SIM
Connector Type: USB Type C
Form Factor: Foldable Screen
Biometric Security Feature: Fingerprint Recognition
Human-Interface Input: Touchscreen
Sim Card Size: Nano
Water Resistance Level: Water Resistant
Headphones Jack: [Unknown]
Compatible Devices: Most GSM and CDMA Carriers' Devices
Specific Absorption Rate: 1.6 Watts per Kilogram
Additional Features: Foldable
Flash Memory Supported Size Maximum: 256 GB
Material Features: Durable Glass, Lightweight Aluminum
Front Photo Sensor Resolution: 12 MP
Rear Facing Camera Photo Sensor Resolution: 12 MP
Camera Description: Front
Shooting Modes: Custom
Optical Sensor Resolution: 12 MP
Number of Rear Facing Cameras: 2
Number of Front Cameras: 1
Item Weight: 6.56 ounces
Item Dimensions: 6.5 x 2.83 x 0.27 inches
Video Capture Resolution: 4k
Frame Rate: 60 fps
GPS Geotagging Functionality: True
Supported Satellite Navigation System: GPS
Screen Size: 6.7 Inches
Resolution: 1080 x 2640
Refresh Rate: 120 hertz
Display Type: AMOLED
Aspect Ratio: 169
Display Resolution Maximum: 2640 x 1080 Pixels
Display Pixel Density: 425 Pixels Per Inch (PPI)
Wireless Provider: Unlocked
Cellular Technology: 5G
Connectivity Technology: Bluetooth
Wireless Network Technology: Wi-Fi
Brand: Samsung
Model Year: 2022
Built-In Media: Charging Cable
Warranty Description: 90 Day Limited Warranty
Manufacturer: Samsung Electronics
Model Series: 2
Specific Uses For Product: Gaming
UPC: 749876120732
Battery Capacity: 3700 Milliamp Hours
Battery Description: Lithium-Ion
Battery Power: 3700 Milliamp Hours
Battery Average Life: 18.5 Hours
Phone Talk Time: 18.5 Hours
Average Battery Life Talk Time: 20 Hours
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 12
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Bora Purple
Service provider: Unlocked
Memory Storage Capacity: 128 GB
Product grade: Renewed
This review is for the phone as well as the process of buying a Renewed item through Amazon. I purchased this phone because I could not find a phone that isn't massive but that still had the features and performance I require for daily use, so I decided to try this renewed Flip 4. The 90 day return policy and the great price convinced me to try it out. Not sure if I can name the seller in the review but I basically selected the phone in the best condition from the highest-rated seller fulfilled by Amazon. The phone arrived in blank packaging with a charging cable. It looks like there is a screen protector installed, plus there was a plastic film on top of the screen for packaging. It came half charged. The phone itself looks brand new. No detectable blemishes or signs of use. Hinge is nice and solid. Full charge was very fast (with fast charger). Setup fairly easy with Samsung transfer app but I am still missing a few passwords and accounts. I can manually add those later. There is a lot of bloatware from Samsung, plus carrier junk apps. (I think this is carrier unlocked- when I put my SIM it, it applied my carrier settings and apps.) Battery life (as expected-lots of info on this) is not great. I knew that going in. I am tracking battery usage throughout the day with different levels of use- screen open and closed, dormant or playing videos - and it seems as though this particular device doesn't deplete battery any more than would be typical for a phone this age. I suspect this particular phone was very gently used to begin with. Example: battery depleted about 10-15% overnight with no use, not plugged in. With heavier usage the battery use goes up to about 10% per hour. Not sure if there's anything I can adjust/disable to make this more efficient. My old phone would give me 1.5 to 2 days of a charge with regular use so this will be an adjustment. The screen is beautiful and easy to see. Samsung is an upgrade overall for me and I am pleased with how smooth it runs. Nice on-screen keyboard, etc. I am not tech savvy so there are probably too many customization options for me personally. I really just want a phone that works well for calls, that I can text on and use internet and maps periodically. This should do the job just fine. No SD storage and no headphone jack. I guess that's becoming customary. The device doesn't seem flimsy at all. That being said, I would get a case ASAP in the event of inadvertent drops - it happens. Signal and connection seem good, as does speaker quality. The fingerprint sensor is on the side near the volume buttons. Not sure I am crazy about this placement and it never registers the first time for me, but I think that's probably a user (me) problem. Overall I had a very good experience buying Renewed. Anyone who is interested in trying a flip smartphone, this is very economical option without a major commitment. I will update my review accordingly if, within 90 days, anything goes haywire on the device.
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Reviewed in the United States on June 6, 2024 by Ok_Grid
Color: Bora Purple
Service provider: Unlocked
Memory Storage Capacity: 128 GB
Product grade: Renewed
Up to today, the phone has never been dropped (on hard surfaces), looks brand new as if it came out of the box besides a very small blemish to the right of the camera lens. The color is beautiful and matches what is shown online. The phone was very responsive and quick for multiple tasks, it even worked well on Genshin Impact (the game) besides getting a little on the warm side. I paid $299.99 (plus $18.00 tax totaling $317.99) June 22 2024. The phones screen started peeling and shortly after turning into a black line 8-9 months of ownership. As of today, ~16 months of ownership the black line grew to cover ~1 inch varying in size across the middle of the screen. (The progression of the peeling over ~7-8 months) The black line and above no longer responds to touch, only can see display above the black line. Under the black line works as it should. The touch screen not working on the top was discovered as of yesterday. I'm not sure of how many total reports there have been of this model of phone but with my experiences I would consider a different phone and perhaps avoid all of the Galaxy Z Flip or Fold phones. If you do consider to buy a Flip or Fold phone and expect it to last quite a bit longer than the warranty, while still being reliable, I highly advise to do your research. Sharing the steps I've taken so far... I've contacted Amazon. Seems they cant do much as its after a year of when I'm reporting this. I left a voicemail to Chubbiestech, the seller, to see what they can do. I will give Samsung a try as well as this problem is from a design flaw, not wear and tear. I also taken multiple pictures and a video of the phone and the phone case purchased for the phone to show the condition of the phone (phone looks brand new besides the screen where it is peeling and some finger prints on the sides) I would post the video however it is too big in size. The pictures shown are the phone along with the phone case. The case is scratched up a bit on the bottom left corner, however this only caused a cosmetic flaw to the case purchased separately for the phone. The case did its job protecting the phone for normal use excluding drops as the phone has never been dropped on hard surfaces. I'm sure its been lightly tossed on the bed, dropped into a pocket, and placed into a purse with other items that most likely caused the cosmetic flaw on the case. The phone has only been open while in use, so only fingers and weather touched the screen. A screen protector has never been applied to the phone. This is the first time I've ever had trouble with a product design itself sold on the Amazon platform out of 86 items.
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Reviewed in the United States on October 31, 2025 Reviewed in the United States on October 31, 2025 by Corey
Color: Gold
Service provider: Verizon
Memory Storage Capacity: 256 GB
Product grade: Renewed
Phone was in very good condition. You'd never know it was used.
Reviewed in the United States on April 25, 2026 by texaslady
Color: Graphite
Service provider: T-Mobile
Memory Storage Capacity: 256 GB
Product grade: Renewed
I purchased this phone back in January, its been just about 4 months. To start i purchased it at a lower price due to selecting one with cosmetic damage, didn't bother me, I know to read descriptions when buying used. My issue was that the phone actually didn't stay powered on and would only work when plugged in. Im giving 5 stars because the customer service was great. I was originally offered a refund but I needed a phone so I asked about an exchange instead. I forgot who I spoke with but they delivered. I got a phone at the same price point which had 0 defects. I almost thought it was brand new. After 4 months just about the phone is still good. I have 0 issues with battery, both screen work, the folding still feels tight and good etc. Again my exchange was used also, I expected there to be some cosmetic damage or scratches on screen etc but it came 100 percent flawless. I will be ordering again since my wife now wants one.
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Reviewed in the United States on April 16, 2026 by Ryan
Color: Graphite
Service provider: Unlocked
Memory Storage Capacity: 256 GB
Product grade: Renewed
The phone is great. But the battery tends to die fast. You have to charge it a few times a day.
Reviewed in the United States on June 6, 2026 by Ayde C Nunez
Color: Blue
Service provider: Unlocked
Memory Storage Capacity: 128 GB
Product grade: Renewed
I recently took the plunge and purchased this refurbished Samsung Galaxy Z Flip 4 to upgrade from my 2016 iPhone SE, and I must say, it has been nothing short of a revelation. This sleek and stylish foldable phone has managed to exceed all my expectations, offering a perfect blend of speed, economy, feature richness, and outstanding battery life. Let's start with the design. The Z Flip 4's compact form factor is not only a marvel to behold but also highly practical. The folding mechanism is smooth and precise, reflecting the cutting-edge engineering that Samsung is known for. The device fits perfectly in the palm of my hand when folded, and its slim profile easily slips into my pocket, making it incredibly portable. The speed of this device is nothing short of impressive. Powered by the latest hardware, including a snappy processor and ample RAM, the Z Flip 4 handles multitasking with ease. Apps launch quickly, and navigating through the interface is a seamless experience. Whether I'm streaming videos, playing games, or working on productivity tasks, the Z Flip 4 delivers a fluid and responsive performance. Economical in both price and energy consumption, the refurbished Z Flip 4 proves that sustainability doesn't have to come at the expense of performance. The refurbished model not only comes at a more budget-friendly price point but also contributes to reducing electronic waste, aligning with the growing demand for eco-conscious consumer choices. One of the standout features of the Z Flip 4 is its impressive array of capabilities. The camera system, for instance, captures stunning photos with vibrant colors and sharp details. The ability to flex the device at various angles unlocks creative possibilities for both photography and video recording. The flexibility of the foldable screen also enhances the overall user experience, allowing for innovative use cases in both entertainment and productivity. Speaking of the screen, the Z Flip 4's display is a visual treat. The vibrant colors and high resolution make watching videos or scrolling through social media an immersive experience. The durability of the foldable glass ensures that I don't have to worry about scratches or cracks, providing peace of mind in daily use. Now, let's talk about battery life—a crucial aspect for any smartphone user. The Z Flip 4 excels in this department. The combination of a well-optimized operating system and a sizable battery ensures that I can go through a full day of heavy usage without worrying about running out of power. The quick-charging feature is an added bonus, providing a significant boost in a short amount of time. In conclusion, the refurbished Samsung Galaxy Z Flip 4 is a triumph in smartphone design and functionality. Its seamless folding mechanism, powerful performance, economical pricing, feature-rich capabilities, and impressive battery life make it a standout device in the crowded smartphone market. If you're in the market for a device that pushes the boundaries of innovation while being mindful of your budget and the environment, the Z Flip 4 is undoubtedly worth considering.
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Reviewed in the United States on December 28, 2023 Reviewed in the United States on December 28, 2023 by Luis Lopez
Color: Graphite
Service provider: Unlocked
Memory Storage Capacity: 256 GB
Product grade: Renewed
I purchased this phone about five months ago for my husband because he wanted something compact that could fit easily in the front pocket of his bib overalls. Before purchasing, I read reviews mentioning issues with the screen failing when the phone is unfolded. It was mostly that the cease in the middle would be noticeable. Since that didn't really bother my husband, we decided the pros outweighed the cons. Unfortunately, I didn't expect the phone to become unusable after only five months. The first 3 photos were of it when it arrived, there were scratches around the hinge area, although I understood that I was purchasing a used phone. Even so, for the $250 I spent, I had hoped it would be in better condition. The phone arrived in a plain brown box with minimal protective packaging. After five months of use, the screen began to separate along the fold area. Shortly afterward, the phone stopped working completely. The phone would close but when open it was dark and we couldn't access any of the phone's function. My husband couldn't answer calls if the screen didn't activate when he opened the phone. Close the phone looked normal and work like it should. Open the screen went dark, and although I could hear it rebooting, nothing appeared on the display. We couldn't reset it or retrieve any information from it. Since this was a renewed phone, I contacted the seller. The seller wrote back and explained that Flip and Fold models are delicate devices and that debris can sometimes get into the hinge, causing issues with the flex cables that control the battery and screen. However, I had purchased a high quality protective case specifically to help prevent damage, so I found that explanation difficult to understand. This is a Samsung phone, and I would expect it to last much longer than five months. A phone costing more than $250 should not become unusable so quickly under normal use. Just so other buyers are aware, Amazon holds sellers responsible for defects for only 90 days. After that period, buyers must file an Amazon A-to-Z Guarantee claim. In my opinion, 90 days is not enough coverage for a cell phone, especially one that costs over $200. Currently my claim is in process and I hope I get a refund back for an unusable phone. I would be cautious when purchasing a used Flip or Fold phone, as these devices appear to be more fragile than traditional smartphones. If you do buy this phone, make sure you buy the additional warranty because spending that much you would want your phone to not breakdown less than 1 year.
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Reviewed in the United States on June 15, 2026 Reviewed in the United States on June 15, 2026 by T Worline
Color: Graphite
Service provider: Unlocked
Memory Storage Capacity: 256 GB
Product grade: Renewed
Love this phone. Had to return one because it was scratched at the screen but got a replacement asap. Love how compact it is. I always get compliments.
Reviewed in the United States on June 2, 2026 by Cherry