






🚀 Elevate your mobile game with the Galaxy S21 5G – where speed meets style!
The Samsung Galaxy S21 5G SM-G991U is a sleek, Phantom Gray unlocked smartphone featuring 128GB storage and 8GB RAM, delivering fast 5G connectivity and a vibrant display. Despite being a renewed device, it offers excellent performance and value, perfect for professionals seeking reliable speed and flexibility.



| ASIN | B08VLMQ3KS |
| Additional Features | Camera, Front Camera, camera |
| Aspect Ratio | 1.33:1 |
| Average Battery Life Talk Time | 40 Hours |
| Battery Average Life | 2 days |
| Battery Capacity | 4000 Milliamp Hours |
| Battery Charge Time | 73 minutes |
| Battery Description | Lithium Ion |
| Best Sellers Rank | #39,681 in Mobile Phones & Communication Products ( See Top 100 in Mobile Phones & Communication Products ) #2,050 in SIM-free & Unlocked Mobile Phones |
| Biometric Security Feature | Fingerprint Recognition |
| Brand | Samsung |
| CPU model | Snapdragon |
| CPU speed | 2.84 GHz |
| Camera Description | Front |
| Color | Phantom Grey |
| Compatible Devices | Any unlocked 5G-capable device |
| Connectivity Technology | Wi-Fi |
| Customer Reviews | 4.0 out of 5 stars 7,855 Reviews |
| Display Pixel Density | 421 Pixels Per Inch (PPI) |
| Effective Video Resolution | 4320 Pixels |
| Flash Memory Supported Size Maximum | 128 GB |
| Frame Rate | 60, 120 fps |
| Front Photo Sensor Resolution | 32 MP |
| GPS Geotagging Functionality | True |
| Human-Interface Input | Touchscreen |
| Installed RAM memory size | 6 GB |
| Item Dimensions | 15.2 x 7.1 x 0.8 centimeters |
| Item Weight | 0.37 Pounds |
| Memory Storage Capacity | 128 GB |
| Memory storage capacity | 128 GB |
| Model Series | S21 |
| Model Year | 2021 |
| Number of Front Cameras | 2 |
| Number of Rear Facing Cameras | 2 |
| Optical Sensor Resolution | 64 MP |
| Phone Talk Time | 1 Hours |
| Processor Series | Snapdragon |
| Processor Speed | 2.84 GHz |
| RAM Memory Installed | 6 GB |
| Rear Facing Camera Photo Sensor Resolution | 64 MP |
| Resolution | 1080 x 2400 |
| SIM Card Slot Count | Dual SIM |
| Screen Size | 6.2 Inches |
| Screen size | 6.2 Inches |
| Shooting Modes | Automatic |
| Sim Card Size | Nano |
| Specific Uses For Product | outdoor activities, wet environments |
| Supported Satellite Navigation System | GPS |
| UPC | 656942006800 649661735908 657768421105 656942688440 |
| Video Capture Resolution | 1080p |
| Water Resistance Level | Water Resistant |
| Wireless Network Technology | Bluetooth, GSM, LTE, NFC, UMTS |
| Wireless Provider | Unlocked |
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
R**O
Bought 2, one of the battery is no good
So, after unboxing the phone the only discernable defect were a couple very minor scratches, even could be classified as scuffs as they weren't deep or noticable until the phone was tilted in just the right light and angle. So in terms of the condition, it was as advertised (at least in appearance) as "like new" / excellent. It came with Android 13, had no bloatware, was unlocked, the battery was low, which means the phone was sitting awhile dormant, which may be a bad thing, but so far so good, it charged and seems to be holding onto the charge fine. Overall this was a great deal, I got it for my mom as her new phone, I may pick another one up for myself. So i did get a second, and didnt have as good luck ... The battery is quick to discharge and slow to charge
M**L
Great quality. Great price.
This phone was in excellent condition and works well....a huge cost savings. I was not afraid to purchase it as my last refurbished phone lasted 5-6 years. A BIG NOTE: my son could not get the first phone to work with his straight talk plan. The error could have been on his end or a problem with the phone. This seller's customer service was excellent and they sent us a prepaid label to return it right away. The 2nd phone they sent worked perfectly from the get go.
D**R
Amazing!
I couldn't afford a brand new phone so I went with this "excellent condition" one. Which for me I love this. The phone is basically brand new. Not a single scratch on it, no wear, nothing! It works/looks like as if it's brand new, the battery life is great. I'm using it now to write this review. All pro's no cons. Buying a phone this way saved me sooooo much money than it would've to get this one new (plus I didn't want to pay more for a new plan on top of a new phone) My mom may be getting one too, she's impressed with what I received and has been looking for a new phone herself.
J**.
Se cumple con lo que dice la descripción
El teléfono es bastante bueno a nivel de software y en cuestión de la estética pues se cumple con lo que dice en los teléfonos reacondicionados en excelente, claro que tiene pequeños detalles en la parte de atrás, pero eso lo dice la descripción así que no es algo que moleste y por el precio yo creo que no es algo que debería de preocupar ya que todo el teléfono es muy bueno. Llegó limpio y en una caja genérica (otra cosa que también se dice en la descripción), hasta tenía protector de pantalla puesto. Sí esta desbloqueado (me funciona UNEFON) y funciona perfecto, llamadas, internet y bueno conectividad en general van muy bien. Las camaras no tienen ningún rayon o algo por el estilo y el frame de aluminio solo tiene un pequeño rayon en la parte de abajo que casi ni se ve, lo que se puede esperar de un teléfono reacondicionado, eso sí no tiene ni un rayon en la pantalla, esta perfecta. La batería para mí está bien a pesar de tener menos de 5000mah, obviamente si eres más exigente y lo ocupas más pues dura menos la batería, aunque de nuevo por el precio yo creo que es muy bueno el teléfono. El vendedor fue BuySPRY y llegó muy bien el teléfono, en tiempo y forma En resumen, por lo que estas pagando te llevas un teléfono bastante bueno y mejor que la media actual.
X**A
Excellent so far
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.
Trustpilot
2 weeks ago
2 months ago