Compare: Samsung Galaxy A31 vs Vivo S1 Pro

Our Opinion

The Samsung Galaxy A31 is a slightly better phone than the Vivo S1 Pro, and is also significantly better value for money. What should you buy? Go for the Samsung Galaxy A31!

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	Samsung Galaxy A31	Vivo S1 Pro

Buy Now	Buy	Buy
Excellence Score	38.5	34.3
Value for Money Score	70.8	64.4
Price	₹ 16,599 onwards	₹ 18,380 onwards
Launch Date (India)	Jun, 2020	Jan, 2020
Expected Launch Date	N/A	N/A
Smartphone OS	Android 10Expected update to next Android version	Android 9.0 Pie, Upgradeable to Android 10Expected update to Android 11
Touchscreen	Yes (Capacitive)	Yes (Capacitive)
Screen Size	6.4 inches	6.38 inches
Screen Resolution	1080x2400 pixels (~ 411 pixels per inch)	1080x2340 pixels (~ 404 pixels per inch)
Tall Aspect Ratio / Minimal Bezels	Yes	Yes
Scratch Resistant Display	Yes	Yes
Display Type	AMOLED	AMOLED
Screen Refresh Rate	60 HzStandard	60 HzStandard
Display Features	Super AMOLED	Super AMOLED, 2.5D Curved Glass
Full Physical QWERTY Keypad
Processor	2 GHz	2 GHz
Processor Type	Octa Core	Octa Core
Processor Name	MediaTek Helio P65Ranked #43 in Mobile Processor Benchmarks	Qualcomm Snapdragon 665Ranked #46 in Mobile Processor Benchmarks
GPU	Mali-G52	Adreno 610
RAM	6 GB	8 GB
3G	Yes	Yes
4G	Yes	Yes
5G
VoLTE	Yes	Yes
WiFi	Yes	Yes
VoWiFi/WiFi-Calling	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
Connecting Port	USB-C	USB-C
Primary Camera	48MP + 8MP + 5MP + 5MP	48MP + 8MP + 2MP + 2MP
Camera Auto-Focus	Yes	Yes
Camera Flash	Yes	Yes
HD Video Recording	Yes (Full HD)	Yes (Full HD)
Other Camera Features	48MP: f/2.0 aperture; 1/2.0" Sensor Size; 0.8um Pixel Size; PDAF, 8MP: f/2.2 Aperture; 13mm Focal Length; Ultra-wide Lens; 1/4.0" Sensor Size; 1.12um Pixel Size, 5MP: f/2.4 aperture; Macro Lens, 5MP: f/2.4 aperture; Depth Sensor, Panorama, HDR	48MP: F/1.8 Aperture; 1/2" Sensor Size; 0.8um Pixel Size; PDAF, 8MP: F/2.2 Aperture; 13mm Focal Length (Ultra-wide); 1/4" Sensor Size; 1.12um Pixel Size, 2MP: F/2.4 Aperture; 1/5" Sensor Size; 1.75um Pixel Size (Macro camera), 2MP: F/2.4 Aperture; Depth Sensor, HDR, Panorama, AI Portrait Lighting, AI Super Wide Angle, Bokeh and Shot Re-Focus, Super Macro, Super Night Mode, Live Photo, AR Stickers, AI Portrait Framing, AI Scene Identification, Ultra Wide Video, Slo-Mo, Time Lapse
Secondary Camera	20MP	32MP
Secondary Camera Features	f/2.2 Aperture	F/2.0 Aperture, 0.8um Pixel Size, HDR, AI Face Beauty, Filters, AI Portrait Lighting, Group Selfie (Panorama), Super Night Selfie, Live Photo, AR Stickers, Watermark, Mirror Selfie
Internal Memory	128 GB	128 GB
Expandable Memory Slot	Yes, up to 512 GB	Yes, up to 256 GB
Contacts Storage	Unlimited	Unlimited
SMS Storage	Unlimited	Unlimited
Music Player	Yes	Yes
FM Radio	Yes	Yes
Dual SIM	GSM+GSM	GSM+GSM (Hybrid SIM slot)
Thickness	8.6 mmMedium	8.7 mmMedium
Weight	185 gmMedium	187 gmMedium
Width	73.1 mmOk for one-handed use	75.2 mmOk for one-handed use
Audio Output	3.5mm jack	3.5mm jack
Water Resistant
Battery Capacity	5000 mAh	4500 mAh
Battery Standby	N/A	N/A
Battery Standby (3G)	N/A	N/A
Battery Talktime	N/A	N/A
Battery Talktime (3G)	N/A	N/A
Fast Charging Support	Yes, 15W Fast Charging	Yes, 18W Dual-Engine Fast Charging
Included Fast Charger	Yes, 15.0W Fast Charger	Yes, 18.0W Fast Charger
Other Battery Parameters	N/A	N/A
Fingerprint sensor	Yes	Yes
Other Features	In-display Fingerprint Sensor; Noise Filtration	In-display Fingerprint Sensor; Noise Filtration
2-minute Review [Positives]	Decent looks, similar rainbow-like effects at the back as other Galaxy A series phone when caught against the light, and a prism-like pattern that Samsung calls a “3D prism design” - the design is been overused by Samsung While it supports a polycarbonate back, it still manages to look premium Compact and light for the display size and battery capacity, at just 185g, and 8.6mm in thickness Sharp, bright 6.4-inches Super AMOLED panel with a full-HD+ resolution - its vivid colours make it a joy to stream content, while games also look great on the panel because of its high colour accuracy There's Widevine L1 support by default, which makes streaming content in HD possible Comes with Android 10 out of the box - Samsung's One UI 2 is now one of the better, more clean and streamlined Android UIs around, and is well optimised for modern large displays (like this one) Samsung has also added some neat features including a Game Booster and an intuitive gesture-based navigation system Decent quad camera setup at the back - a 48MP primary sensor + 8MP wide-angle camera + 5MP macro camera + 5MP depth sensor Under good light, the Galaxy A31's primary camera manage to capture detailed shots with good dynamic range - images are reasonably sharp, noise is also competently removed, colours are generally nice, and the phone strikes a good balance with saturation The ultra wide-angle cam is decent at capturing more scene in the image (though, the quality is lower than the main camer) Macro camera turns out quite good close ups - you can get a lot closer to your subject when using the macro camera and the sensor picks up a fair bit of detail Very good portrait mode ("Live focus") - image quality is good and the depth camera helps the Galaxy A51 do a decent job of edge detection Photos from the 20MP front camera looks very impressive - selfies have plenty of detail and look really sharp, colors are pleasing, the dynamic range is impressive for a selfie camera - Selfie portraits are a thing on the A31 and surprisingly impressive - subject separation with a single camera is hard to pull off, and Samsung has done a great job of it Decent bottom-firing speaker - sufficient for personal listening Good battery life from the 5000 mah battery - easily able to go well beyond a day on a single charge Reasonable 15W fast charging - charges 67 percent in an hour (though, not as quick as others in this segment such as the Redmi K20 Pro)	Jazzy, eye-catching back panel design with gradient finish and the unique diamond-shaped camera module The slim profile of the camera module barely protrudes from the back The in-display fingerprint sensor works well Face unlock is present too, which is reliable (though, not as quick as on the other phones at this price level) Vivid, crisp 6.38-inch full-HD+ Super AMOLED display - the colours are also very punchy thanks to the AMOLED panel, and text and icons are adequately sharp The display gets very bright, making it easily legible even under direct sunlight Widevine L1 DRM certified - you can watch Netflix and Prime in crisp HD resolution Funtouch OS based on Android 9 Pie looks very similar to iOS, and is pretty feature packed Decent performance powered by the Qualcomm Snapdragon 665 - it handles multitasking well and regular usage is smooth Decent set of quad rear cameras - 48MP primary + 8MP ultra-wide + 2MP macro + 2MP depth camera Close-ups are good, with good bokeh and details in objects In bokeh mode, the Vivo S1 Pro's depth camera does a decent job of detecting edges, and blurs out the right areas - colours and details are also good The macro camera is also handy at times, and lets you get very close to the subjects Very good 32MP selfie camera - it captures detailed photos when shooting under ideal light - results are fairly good even when shooting against the light The Vivo S1 Pro packs in a 4500 mAh battery, which easily lasts for 2 days of moderate use Overall, the Vivo S1 Pro is a decent pick if all you want is a stylish design, good battery life, and a punchy display
2-minute Review [Negatives]	The front has some thick bezels for the price The in-display fingerprint sensor, as well as the facial recognition, are on the slower side The glossy body is prone to picking up fingerprints There's still some bloatware pre-installed, including third-party apps and some of Samsung's own apps such as Samsung Shop (though most of them can be uninstalled) Average performance from the MediaTek Helio P65 - it feels a bit sluggish overall, there's a persistent hint of stutter in the animations, and lag when switching between apps No video stabilisation - video results are just average Low light photos out of the Galaxy A31 aren't great - the main camera's output is soft and noisy, while the colors are relatively desaturated Overall, while the Galaxy A51 offers good cameras, there are certainly better options available, such as the Redmi K20 Pro The Galaxy A31 has hardly anything going for it - the middling SoC performance and underwhelming cameras do nothing to help, there are better options available from Xiaomi and Realme	The Vivo S1 Pro feels a little chunky at 8.68mm thick The back isn't glass, as Vivo still uses laminated plastic Having said that, the interface is unnecessarily complicated - swipe-up gesture to access system shortcuts is confusing, since it's in the notification shade in stock or other Android UIs There's a lot of bloatware preinstalled on the Vivo S1 Pro (though the third-party apps can be removed) Heavy games such as PUBG Mobile however struggle to run at a smooth frame rate even at the Low graphics preset This isn't a bad processor, but it's typically now found in phones closer to the Rs. 10, 000 mark, such as the Realme 5i In daylight, the primary camera manage to capture average-looking landscape shots - images lack depth, objects at the sides of the frame also have a bit of grain - HDR kicks in when needed, but the end result isn't always very good - some images have a very cool, bluish hue to them, which look unnatural The wide-angle camera offered a nice perspective, but colours weren't very accurate Low-light photos are just strictly average - focusing is a lot slower in the dark, and it takes a second or two longer to save each photo - there's no dedicated night shooting mode either No option for a background bokeh effect with the front camera Videos can only be recorded at up to 1080p, which is not great, especially at this price - there's no stabilisation either, which is a big letdown Low-light video is not very good, from both primary & ultra-wide lens - has lots of grain as well as weak details Overall, rear cameras are nothing special - you will get better outcomes with the Realme X2 or the Redmi K20 The single speaker doesn't get too loud and the sound is a little tinny Vivo uses its Dual Engine Fast Charge feature, but the 18W charger isn't the fastest - charging the phone completely takes about two and a half hours If you'd prefer a more well-rounded phone though, we suggest looking at offerings from Realme and Xiaomi instead, such as the Realme X2 and the Redmi K20, which have much more powerful SoCs
Expert Reviews	The A31 can stand on its own as a decent mid-ranger... but the competition is just brutal in-depth Read Review » The middling SoC performance and underwhelming cameras are faults that are too glaring to ignore in-depth Read Review » The Samsung Galaxy A31 is a decent smartphone... but it is facing competition in-house only, its M-series sibling the Galaxy M31 is a better and much affordable option in-depth Read Review » An A-lister you should probably ignore in-depth Read Review »	Not a bad pick if all you want is a stylish design, good battery life, and a punchy display....If you'd prefer a more well-rounded phone though, we suggest looking at offerings from Realme and Xiaomi instead in-depth Read Review »
User Reviews	4.3 694+ reviews » 4.0 562+ reviews »	4.4 2,132+ reviews » 4.1 1,001+ reviews »
Official Website	Official Website »	Official Website »
Unofficial specs?	N/A	N/A