







🚀 Stay ahead with the Galaxy S21 5G — where speed meets style.
The Samsung Galaxy S21 5G SM-G991U is a powerful unlocked smartphone featuring 128GB of storage, 8GB of RAM, and ultra-fast 5G connectivity. Its sleek Phantom Gray finish complements a professional lifestyle, while the SIM-free design offers carrier flexibility. Ideal for multitasking, media consumption, and staying connected on the go.



| Aspect Ratio | 1.33:1 |
| Display | AMOLED |
| Display Resolution Maximum | 3200 x 1440 Pixels |
| Resolution | 1080 x 2400 |
| Screen Size | 6.2 Inches |
| Supported Satellite Navigation System | GPS |
| GPS Geotagging Functionality | True |
| Item Dimensions | 5.97 x 2.8 x 0.31 inches |
| Item Weight | 0.37 Pounds |
| Number of Rear Facing Cameras | 2 |
| Optical Sensor Resolution | 64 MP |
| Camera Description | Rear, Front |
| Shooting Modes | Automatic |
| Rear Facing Camera Photo Sensor Resolution | 64 MP |
| Human-Interface Input | Touchscreen |
| Water Resistance Level | Water Resistant |
| Additional Features | Bluetooth Enabled, Expandable Memory, LTE, Wireless Charging, Water Resistant |
| Flash Memory Supported Size Maximum | 128 GB |
| Compatible Devices | Any unlocked 5G-capable device |
| Color | Phantom Gray |
| SIM Card Slot Count | Single SIM |
| Connector Type Used on Cable | USB Type C |
| Form Factor | Slate |
| Biometric Security Feature | Fingerprint Recognition |
| Operating System | Android |
| RAM Memory Installed | 8 GB |
| Processor Series | Snapdragon |
| Processor Speed | 2.84 GHz |
| Memory Storage Capacity | 128 GB |
| Video Capture Resolution | 4k |
| Battery Average Life | 10 Hours |
| Connectivity Technology | Wi-Fi |
| Wireless Network Technology | GSM |
| Cellular Technology | 5G |
| Wireless Provider | Unlocked |
| Battery Charge Time | 73 minutes |
| Battery Power | 4000 Milliamp Hours |
| Battery Type | Lithium-Ion |
| Battery Capacity | 4000 Milliamp Hours |
B**I
I received a sim locked device
I received a sim locked device that needs MCK lock and doesn't support any sim card. Very disappointed after long delivery time
K**A
This Samsung Galaxy S21 5G has been a great purchase. The phone works perfectly, runs fast, and is very easy to use. The screen quality is excellent, with bright colors and sharp resolution. The camera takes clear and detailed photos, and the battery lasts well throughout the day with normal use. Even though it is a renewed phone, it arrived in very good condition and looks almost like new. For the price, this is an excellent value. I am very satisfied with this phone and would definitely recommend it.
C**N
Excellent achat . Fonctionne très bien. J'Adore !
E**Z
Amazing product. Excellent condition. Brand new.
X**A
I ordered it on Sept 20th at $339 plus shipping of ~$34 and Morocco VAT of ~$80, so totally I paid $449. Delivery was very good. I saw it was shipped on the 25th. On the 30th, I received an SMS from DHL saying they planned delivery on Oct. 3rd, but on the same day I got an email asking for copy of national ID and content description for clearing customs. I am not a Morocco residents nor citizen, so I sent my foreign passport instead. On the 3rd, Amazon tracking info said clearing custom was delayed as additional documents were needed. So I called DHL, and the rep said it would be delivered on the 4th instead. On the 4th, I saw a newly posted message about delay on Amazon tracking. I called DHL various times but couldn't get to anyone. I then sent an inquiry by email and get a response shortly saying it was being taking care of. Then late afternoon, I got the package. Upon arriving, the seal of the packing had an opening large enough to put in a hand but not for getting the phone out, so I didn't complain. Unpacked, the inner packing of the phone was in excellent condition, very much like the original packing but had no Samsung marking, rather, it had a marking of "amazonrenewed". There was a film covering the screen, like on a new phone. The phone appeared in excellent condition, only had a small scratch at the back when I looked in detail, and a hair of scratch on the screen that is only visible under bright light and in a particular angle. I tried but couldn't turn on the phone - there was no response. The box also included a USB-C cable and a cheap non-Samsung charger made in China. I used my own Samsung Charger to charge the phone. After plugged in, it showed the battery was at 0. So I let it charge to full. After started, it turned out fully unlocked. My Morocco sim card works with 4G. The phone's software looked already reset, but I reset it myself anyhow. Then updated to the latest system with Android 12, and loaded many apps I need. During about the first week, the battery appeared quite poor. With medium usage it lasted about a day. I tried all necessary settings to conserve battery, but it didn't seem to help much. These couple days, it becomes much better, lasting about 45 hours. I read it was likely due to some AI processes either from Android 12 or Samsung doing the learning work at first. But it's pretty bad the phone doesn't show any info. I would say I am very happy with the phone. And this is after having a terrible experience in the past with Samsung. The last Samsung phone I had was S7 Edge bought in Thailand (I am a traveler), new at a Samsung store for perhaps ~$800. I actually wanted the normal S7 (without the "edge"), but it was out of stock then. I never liked the "edge", it was a silly design in my mind. The phone worked well initially, but in the coming couple of years I had a terrible experience. About 5 months later when I was in Vietnam, the screen started to show shaded bands across. As I was wondering how or if I should return to Thailand to get the phone serviced, the bands disappeared after a month. Then about another 7 months later when I was in Azerbaijan, the phone couldn't start after I did a system update. So I couldn't use the phone for a couple weeks until I reached Tbilisi in Georgia when I had someone flashed it. About a year later, it died on me again when I was in Morocco. I had someone re-flashed it, but it was not successful. About 1 month later I reached the city of Fes where there is a Samsung service center. After checking, they said there was something wrong with the motherboard. Very shocking! I've never had such problem in my life with all the phones and computers, cheap or dear, and this was a flagship! So eventually, I sold it to a local repair shop for $200, for which they said they only needed the screen. That was end of 2017. So I never bought a Samsung again, and would definitely not buy one at the full price. I admit the S series is not worthless. At least, I like the camera. But I never had a chance to buy one at a largely reduced price (I won't buy from just any second-hand sellers). So now, the Amazon reviewed phone with some warranty got me interested. Yes, I have some risk, but to me with the past experience, the risk is not much higher than getting a new phone from Samsung, plus, I am putting in a much lower bet now.
M**L
Very happy for the price. I can't seem to justify spending $1000 plus on a phone. I purchased this refurbished one and really like it. It came in perfect condition, not a scratch on it. It is a little smaller than my last phone which was a Samsung A70. The picture quality on this phone is much better. The only downside is the battery level. It says it's at 85% but it seems like the battery uses it's charge somewhat quickly. Not very tech friendly so maybe that's just the way it is. I'm never far from a charger so it's not really an issue. Overall very pleased.
Trustpilot
1 month ago
3 days ago