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Our Opinion

Both Huawei Y9 Prime (2019) and Vivo S1 (4GB RAM, 128GB) have similar value for money, but Vivo S1 (4GB RAM, 128GB) is a slightly better phone. What should you buy? Go for the Vivo S1 (4GB RAM, 128GB).

Huawei Y9 Prime (2019)  Vivo S1 (4GB RAM, 128GB) 
Huawei Y9 Prime Vivo S1
Buy Now Buy Buy
Excellence Score
27.4
27.7
Value for Money Score
61.4
61.4
Price ₹ 14,999 onwards ₹ 15,189 onwards
Launch Date (India) Aug, 2019 Aug, 2019
Expected Launch Date N/A N/A
Smartphone OS Android 9.0 Pie, Upgradeable to Android 10Low likelihood of getting updated to next Android version Android 9.0 Pie, Upgradeable to Android 10Expected update to Android 11
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.59 inches 6.38 inches
Screen Resolution 1080x2340 pixels (~ 391 pixels per inch) 1080x2340 pixels (~ 404 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes Yes
Display Type TFT LCD AMOLED
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features 2.5D Curved Glass Super AMOLED
Full Physical QWERTY Keypad
Processor 2.2 GHz 2 GHz
Processor Type Octa Core Octa Core
Processor Name Hisilicon Kirin 710Ranked #50 in Mobile Processor Benchmarks MediaTek Helio P65Ranked #43 in Mobile Processor Benchmarks
GPU Mali-G51 MP4 Mali-G52
RAM 4 GB 4 GB
3G Yes Yes
4G Yes Yes
5G
VoLTE Yes Yes
WiFi Yes Yes
VoWiFi/WiFi-Calling
GPS Yes Yes
Bluetooth Yes Yes
Connecting Port USB-C microUSB
Primary Camera 16MP + 8MP + 2MP 16MP + 8MP + 2MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) Yes (4K)
Other Camera Features 16MP: F/1.8 Aperture; PDAF, 8MP: Ultrawide, 2MP: F/2.4 Aperture; Depth sensor, HDR, Panorama 16MP: F/1.78 Aperture; 1/2.8" Sensor Size; 1.12um Pixel Size; PDAF; Sony IMX499 Sensor, 8MP: F/2.2 Aperture; 13mm Focal Length (Ultrawide); 120° Wide-angle lens, 2MP: F/2.4 Aperture; Depth Sensor, HDR, Panorama, Video: [email protected]; [email protected], Live Photos, AI Super Wide-Angle, Portrait Mode, AI Portrait Framing, Doc Mode, Professional, AR Stickers, AI Face Beauty, Video, Video Face Beauty, Time-Lapse, Slo-Mo
Secondary Camera 16MP 32MP
Secondary Camera Features Motorized Pop-up Camera, F/2.0 Aperture F/2.0 Aperture, HDR, Panorama, Live Photos, Gender detection, Face Beauty, Portrait, AR Stickers, Video Face Beauty, AI Selfie Lighting, AI Face Beauty
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 (Hybrid SIM slot) GSM+GSM
Thickness 8.8 mmMedium 8.13 mmMedium
Weight 197 gmHeavy 179 gmMedium
Width 77.3 mmInconvenient for one-handed use 75.2 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 4000 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, 18W Fast Charging
Included Fast Charger Yes, 18.0W Fast Charger
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features Noise Filtration In-display Fingerprint Sensor; Noise Filtration
2-minute Review [Positives] N/A
  • Stunning, beautiful design, that's a treat to the eyes - Vivo S1 is easily among the most well-designed smartphones to launch this year
  • There is a mesmerising dual tone finish on the metal frame, and a unique 'diamond lattice' design back, that reflects colors in the most interesting ways - this is the kind of smartphone that will definitely get you a lot of Wows from everyone around
  • It not only looks great but also feels great to hold and use thanks to the 2.5D design
  • Fast in-display fingerprint sensor
  • Dedicated Google Assistant button
  • Very good 6.38-inch AMOLED display - you will get deep blacks and punchy colors
  • Funtouch OS UI looks very similar to iOS, and is pretty feature packed, including a good gesture navigation system, and an 'Ultra Game' mode
  • Daily performance is smooth all-round with a Helio P65 processor (similar to the Helio P70, and Snapdragon 660), and most games run well too
  • Decent set of triple rear cameras - 16MP primary + 8MP ultra-wide + 2MP depth
  • The primary camera captures images with fairly good details
  • The depth camera helps with some decent portraits
  • The 32MP selfie camera is decent too, and does especially well with details (though the image softening algorithm is a bit too aggressive)
  • Outstanding battery life with a large 4500mAh battery paired with a low-power MediaTek Helio P65 SoC - you will comfortably clock 2 days of use
  • Bundled 18W fast charger
2-minute Review [Negatives] N/A
  • It's on the cluttered side though, and does have some bloatware - so the experience is not as clean and simple as stock Android
  • More complex games like PUBG though are not smooth at high graphics settings - and here the phone loses out to the best performing phones of this price bracket that pack the likes of Snapdragon 675, and Snapdragon 710
  • The ultra-wide camera provides for versatility in shot framing, but the quality is average - details are low, and the overall image is muted
  • Low light performance is average too
  • Overall, the cameras are decent for the price bracket, but not really comparable to the top camera phones of this price bracket, like Redmi Note 7 Pro, Realme 3 Pro, Realme X, and even the Vivo Z1 Pro
  • Uses the old microUSB port, instead of the modern USB-C port
  • On it's own the Vivo S1 is a pretty good device, but it faces some real tough competition at the moment - the camera and the performance are not the best for the price bracket, though if your main priorities are a best-in-class design, and excellent battery life, it could still make a lot of sense
Expert Reviews
  1. techradar.com hands-on Read Review »
  2. bgr.in hands-on Read Review »
  3. ibtimes.co.in hands-on Read Review »
  4. indiatoday.in hands-on Read Review »
  1. For the asking price, you can get better-equipped smartphones
    gadgets.ndtv.com in-depth Read Review »
  2. If your priority is absolutely best in selfie experience then pick Vivo S1, else its rivals look better
    bgr.in in-depth Read Review »
  3. If you can make your peace with the camera performance and you are not into graphics-heavy games, Vivo S1 is not a bad deal
    indianexpress.com in-depth Read Review »
  4. A good device to consider in this price range
    themobileindian.com in-depth Read Review »
  5. An average midranger with more style and less substance
    in.mashable.com in-depth Read Review »
  6. It’s got the looks, but needs more
    techpp.com in-depth Read Review »
  7. At the price point, there are far more compelling options available
    timesnownews.com in-depth Read Review »
  8. A great midrange device
    deccanchronicle.com in-depth Read Review »
  9. It is a capable phone, and a looker...but there are better deals available
    indiatoday.in in-depth Read Review »
  10. A balanced midrange phone marred by Vivo’s unoptimised user interface
    business-standard.com in-depth Read Review »
  11. gsmarena.com hands-on Read Review »
  12. fonearena.com hands-on Read Review »
  13. ibtimes.co.in hands-on Read Review »
User Reviews
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  1. Flipkart4.5 836+ reviews »
  2. Amazon4.4 1,391+ reviews »
Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 2
  • Individual Review 2
Individual Review

Huawei Y9 Prime 2019 Review

YugaTech

Top Pick

Individual Review

Vivo S1 Review –

Gadgets 360

Top Pick

Full Review

Huawei Y9 Prime 2019 Review

YugaTech

Full Review

Vivo S1 Review –

Gadgets 360

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