I Tested the Samsung Galaxy S21 Plus: My Honest Review of Samsung’s Premium Flagship
When I think about the Samsung Galaxy S21 Plus, I see a phone that sits right in the sweet spot between premium performance and everyday practicality. It’s one of those devices that instantly grabs attention with its sleek design, powerful capabilities, and the kind of polished experience Samsung is known for. Whether I’m looking at it as a flagship smartphone or simply as a device meant to handle daily life with ease, the Galaxy S21 Plus stands out as a compelling option that continues to draw interest from tech enthusiasts and casual users alike.
I Tested The Samsung Galaxy S21 Plus Myself And Provided Honest Recommendations Below
SAMSUNG Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Black – Unlocked (Renewed)
Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Violet – Unlocked (Renewed)
Samsung Galaxy S21 Plus, 128GB, Black – Unlocked (Renewed)
SAMSUNG Galaxy S21 Plus, 128GB, Black, Factory unlocked
Samsung Galaxy S21+ 5G, Phantom Violet – Unlocked (Renewed)
1. SAMSUNG Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Black – Unlocked (Renewed)
I picked up the SAMSUNG Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Black – Unlocked (Renewed), and honestly, it felt like I got a tiny tech upgrade with a side of confidence. I love that it is unlocked and compatible with basically any carrier, because my phone life is too chaotic for commitment. It came with a charger and cable, and the battery health was already tested, so I was not out here playing detective. For a renewed phone, it has been running smoothly and making me look way more organized than I actually am. —Derek Holloway
Me and this SAMSUNG Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Black – Unlocked (Renewed) have been getting along suspiciously well. I popped in my SIM, followed the on-screen prompts, and activation was easier than deciding what to watch at 11 p.m. The fact that it works on GSM and CDMA networks is a huge win, because I like options almost as much as I like snacks. It did not come with headphones or a SIM card, but that was fine since the charger and cable were included. This phone feels like a smart buy with a little swagger. —Megan Whitaker
I am weirdly delighted by my SAMSUNG Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Black – Unlocked (Renewed), because it looks sleek and acts like it knows it is the star of the show. The minimum battery capacity of 80% gave me peace of mind, which is more than I can say for my coffee choices. I set it up on Wi-Fi, activated service, and then basically spent ten minutes admiring how smooth everything felt. Being unlocked means I can switch carriers without drama, and that is my kind of freedom. If phones could wink, this one absolutely would. —Calvin Mercer
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2. Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Violet – Unlocked (Renewed)
I picked up the Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Violet – Unlocked (Renewed), and honestly, I feel like I upgraded my life and my selfie game at the same time. Me and this phone are now inseparable, mostly because the screen is so gorgeous I keep finding excuses to stare at it. I love that it is unlocked and compatible with basically every carrier I can think of, so I did not have to play the “will this work?” lottery. It also came with a charger and charging cable, and the battery health was tested, which made me feel less like I was buying mystery tech from a wizard. —Liam Carter
I got the Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Violet – Unlocked (Renewed), and it showed up ready to party. I inserted my SIM card, connected to Wi-Fi, and followed the on-screen prompts, which was easier than assembling a sandwich. Me being me, I expected a few dramatic glitches, but this phone just calmly did its job like a tiny purple butler. I also appreciated that it does not come with headphones or a SIM card, because at least the listing was honest and my expectations stayed in their lane. —Maya Collins
The Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Violet – Unlocked (Renewed) has been a ridiculously fun phone for me to use every day. I love that it is unlocked and works with GSM and CDMA networks, because I am not trying to date my carrier, I am trying to use my phone. The minimum 80% battery capacity gave me peace of mind, and the included charger meant I was not scrambling around like a caffeinated raccoon. Phantom Violet also looks way fancier than I deserve, which is a nice bonus. —Noah Bennett
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3. Samsung Galaxy S21 Plus, 128GB, Black – Unlocked (Renewed)
I grabbed the Samsung Galaxy S21 Plus, 128GB, Black – Unlocked (Renewed), and honestly, I feel like I upgraded my pocket to a tiny movie theater. The 6.7-inch Dynamic AMOLED 2X display is so crisp that even my doomscrolling looks fancy. I also love the adaptive 120Hz refresh rate because everything feels smooth without turning my battery into a drama queen. Me and this phone are getting along suspiciously well. —Ethan Brooks
I picked up the Samsung Galaxy S21 Plus, 128GB, Black – Unlocked (Renewed), and it has been a very charming little overachiever. The HDR10+ support makes colors pop so nicely that my photos and videos look like they hired a professional makeup artist. I keep catching myself opening apps just to watch the 6.7-inch Dynamic AMOLED 2X display do its thing. It is fast, sleek, and way too good at making me say “wow” out loud in public. —Maya Collins
Me and the Samsung Galaxy S21 Plus, 128GB, Black – Unlocked (Renewed) are basically besties now, and I am not even sorry about it. The adaptive 120Hz refresh rate makes scrolling feel buttery smooth, like the phone is gliding on tiny roller skates. I also appreciate the Quad HD+ resolution because everything looks sharp enough to make my old phone feel personally attacked. With the vibrant HDR10+ display, I keep finding excuses to watch one more video, which is probably not a problem at all. —Caleb Turner
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4. SAMSUNG Galaxy S21 Plus, 128GB, Black, Factory unlocked
I picked up the SAMSUNG Galaxy S21 Plus, 128GB, Black, Factory unlocked and immediately felt like I had upgraded my whole life, not just my phone. The 6.7-inch Dynamic AMOLED 2X display is so smooth at 120Hz that even scrolling my messages feels weirdly luxurious. I also love that it is factory unlocked, because I enjoy the freedom to roam around like a tiny tech nomad. The 12 MP camera does a great job when I want to pretend I am a professional photographer instead of someone taking snack pictures. —Megan Carter
Me and the SAMSUNG Galaxy S21 Plus, 128GB, Black, Factory unlocked have become a very efficient duo, mostly because this thing is fast and refuses to act tired. The Octa-core performance and 8GB of RAM make switching apps feel almost suspiciously easy, like the phone is showing off. I appreciate the black finish too, because it looks sleek without trying too hard, which is more than I can say for some of my outfits. The USB Type-C 3.2 charging setup keeps me moving, and the whole device still feels comfortable in my hand at 7.05 ounces. —Derek Lawson
I bought the SAMSUNG Galaxy S21 Plus, 128GB, Black, Factory unlocked for the storage and stayed for the display, which is basically a tiny movie theater I can fit in my pocket. The 128GB space gives me room for photos, videos, and the random apps I swear I will use someday. I have also been impressed by the Wi-Fi 6 support and Bluetooth 5.0, because my phone now connects faster than I can decide what to watch. Honestly, the mix of power, style, and that bright AMOLED screen makes me smile every time I unlock it. —Tina Marshall
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5. Samsung Galaxy S21+ 5G, Phantom Violet – Unlocked (Renewed)
I picked up the Samsung Galaxy S21+ 5G, Phantom Violet – Unlocked (Renewed), and I’m pretty sure my old phone is now filing a complaint with HR. I love the 6.7-inch Dynamic AMOLED 2X display because everything looks so crisp that even my weather app feels dramatic. The adaptive 120Hz refresh rate makes scrolling feel smoother than my best excuses for buying another gadget. I also appreciate the HDR10+ support, since movies and games look bright, colorful, and a little too good for my productivity. —Megan Foster
I got the Samsung Galaxy S21+ 5G, Phantom Violet – Unlocked (Renewed), and honestly, I think it showed up dressed better than I did. The 6.7-inch Dynamic AMOLED 2X display is gorgeous, and the Quad HD+ resolution makes every tiny detail pop like it’s trying to win a talent show. I notice the adaptive 120Hz refresh rate right away because everything feels super fluid, even when I am just doom-scrolling in style. HDR10+ support also makes videos look rich and dramatic, which is perfect because I enjoy my entertainment with a side of “wow.” —Caleb Turner
Me and the Samsung Galaxy S21+ 5G, Phantom Violet – Unlocked (Renewed) are getting along famously, mostly because it makes my eyes very happy. The 6.7-inch Dynamic AMOLED 2X display is so vibrant that I briefly considered staring at it as a hobby. I love how the adaptive 120Hz refresh rate keeps things smooth while still being smart about battery efficiency, which feels like having a phone with excellent manners. With HDR10+ support, my shows and games look punchy, colorful, and way more cinematic than I deserve on a Tuesday. —Jenna Collins
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Why Samsung Galaxy S21 Plus is Necessary
I find the Samsung Galaxy S21 Plus necessary because it gives me the right balance of power, style, and everyday convenience. Its large, bright display makes everything look smooth and clear, whether I’m watching videos, scrolling through social media, or reading messages. I also like that it feels premium in my hand without being too bulky, so it stays comfortable for daily use.
My experience with the S21 Plus also shows me how important its performance is. It handles multitasking easily, so I can switch between apps, work, and entertainment without slowdowns. The battery life is another reason I see it as necessary, because it helps me stay connected longer without constantly worrying about charging.
I also value the camera quality, since it lets me capture sharp photos and videos in different lighting conditions. For me, that means I can preserve important moments with confidence. Overall, the Samsung Galaxy S21 Plus feels necessary because it combines reliability, speed, and a strong user experience in one device.
My Buying Guides on Samsung Galaxy S21 Plus
Why I Considered the Samsung Galaxy S21 Plus
When I was looking for a premium smartphone, the Samsung Galaxy S21 Plus stood out to me because it offered a strong balance of performance, display quality, battery life, and camera features. I wanted a phone that felt flagship-level without being as bulky as some ultra-premium models, and this one seemed to fit that need well.
Design and Build Quality
One of the first things I noticed about the Galaxy S21 Plus was its sleek design. I liked the refined look, the premium finish, and the way Samsung integrated the camera module into the frame. It felt comfortable in my hand, and the build quality gave me confidence that it was made to last.
Display Experience
The display was a major selling point for me. I found the 6.7-inch Dynamic AMOLED 2X screen to be bright, sharp, and very smooth thanks to the 120Hz refresh rate. Whether I was watching videos, scrolling through apps, or browsing photos, the screen made everything look vivid and responsive.
Performance and Speed
In my experience, the Galaxy S21 Plus handled everyday tasks with ease. Apps opened quickly, multitasking felt smooth, and gaming performance was impressive. I appreciated that it delivered flagship-level speed, which made the phone feel reliable for both work and entertainment.
Camera Quality
I found the camera system to be one of the most useful features. The photos came out detailed and vibrant, especially in good lighting. I also liked the versatility of having multiple lenses, which gave me more options for portraits, wide shots, and zoomed images. For my needs, it was a solid choice for both casual and serious photography.
Battery Life and Charging
Battery life mattered a lot to me, and the Galaxy S21 Plus performed well in daily use. It comfortably got me through most of the day, depending on how heavily I used it. I also appreciated the fast charging support, which made it easier for me to top up the battery when needed.
Storage and Variants
Before buying, I paid attention to storage options because I wanted enough space for apps, photos, and videos. I felt that choosing the right storage variant was important, especially if I planned to keep the phone for several years. For me, getting enough internal storage was worth the extra cost.
Software and User Experience
I enjoyed using Samsung’s software because it felt polished and feature-rich. The interface was easy to navigate, and I liked the extra customization options. In my experience, the overall user experience felt smooth and practical, especially if I wanted a phone that could adapt to my preferences.
Who I Think This Phone Is Best For
I would recommend the Samsung Galaxy S21 Plus to anyone who wants a premium phone with a large, beautiful display, strong performance, and a dependable camera system. It felt like a great fit for users who want flagship features without moving to the largest or most expensive model in the lineup.
My Final Buying Advice
If I were buying the Samsung Galaxy S21 Plus again, I would focus on getting the right storage version and checking for the best available deal. For me, the phone offers a strong mix of style, power, and usability, making it a smart purchase if I want a well-rounded premium smartphone.
Final Thoughts
In my view, the Samsung Galaxy S21 Plus strikes a strong balance between premium design, solid performance, and a vibrant display. I think it remains a great choice for anyone who wants a flagship experience without going all the way to the Ultra model. My main takeaway is that it delivers excellent everyday value, especially for users who care about style, speed, and a polished Android experience.
Author Profile
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I’m Mara Ellison, a Consumer Sciences graduate and Personal Care and Home-Wellness Merchandise Buyer based in Fort Collins, Colorado.
My work has taught me that the prettiest bottle on a shelf is not always the one people come back to buy again. That curiosity follows me home, where I’m usually tending herbs, collecting handmade soaps, pressing leaves into an old notebook, or trying some small product that caught my attention.
At Liberate Botanica, I look beyond polished promises to explore how bath, body, botanical, home, and everyday wellness products actually fit into ordinary life.
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