Our Opinion

The Oppo K3 (6GB RAM, 64GB) is a significantly better phone, but the Samsung Galaxy M30s (4GB RAM, 64GB) is significantly better value for money. Which phone should you buy? Depends on how much you want to spend! But if budget is not a constraint then we recommend the Oppo K3 (6GB RAM, 64GB)

Oppo K3 (6GB RAM, 64GB)  Samsung Galaxy M30s (4GB RAM, 64GB) 
Oppo K3 Samsung Galaxy M30s
Buy Now Buy  not available currently
Excellence Score
44.3
34.1
Value for Money Score
62.2
71.7
Price ₹ 23,990 onwards ₹ 13,999 onwards
Launch Date (India) Jul, 2019 Sep, 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 next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.5 inches 6.4 inches
Screen Resolution 1080x2340 pixels (~ 396 pixels per inch) 1080x2340 pixels (~ 403 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes, Corning Gorilla Glass 5 Yes
Display Type AMOLED AMOLED
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features N/A Super AMOLED
Full Physical QWERTY Keypad
Processor 2.2 GHz 2.3 GHz
Processor Type Octa Core Octa Core
Processor Name Qualcomm Snapdragon 710Ranked #40 in Mobile Processor Benchmarks Samsung Exynos 9611Ranked #33 in Mobile Processor Benchmarks
GPU Adreno 616 Mali-G72 MP3
RAM 6 GB 4 GB
3G Yes Yes
4G Yes Yes
5G
VoLTE Yes Yes
WiFi Yes Yes
VoWiFi/WiFi-Calling Yes
GPS Yes Yes
Bluetooth Yes Yes
Connecting Port USB-C USB-C
Primary Camera 16MP + 2MP 48MP + 8MP + 5MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (4K) Yes (4K)
Other Camera Features 16MP: F/1.7 Aperture; 1/2.5" Sensor Size; 1.12um Pixel Size; PDAF, 2MP: F/2.4 Aperture; Depth Sensor, HDR, Panorama, Video: 2160p@30fps; 1080p@30/120fps; Gyro-EIS 48MP: F/2.0 Aperture; Samsung GW2 Sensor, 5MP: Depth Sensor; F/2.2 Aperture, 8MP: 123° Ultra-wide Angle Lens; F/2.2 Aperture
Secondary Camera 16MP 16MP
Secondary Camera Features Motorised Pop-up Camera, F/2.0 Aperture, 26mm Focal Length (wide), HDR, Video: 1080p@30fps F/2.0 Aperture, Samsung SK3P8SP Sensor
Internal Memory 64 GB 64 GB
Expandable Memory Slot Yes, up to 512 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes Yes
Dual SIM GSM+GSM GSM+GSM
Thickness 9.4 mmThick 8.9 mmMedium
Weight 191 gmHeavy 188 gmMedium
Width 76.0 mmOk for one-handed use 75.1 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 3765 mAh 6000 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, 20W VOOC Flash Charge 3.0 Yes, 15W Fast Charging
Included Fast Charger Yes, 20.0W Fast Charger Yes, 15.0W Fast Charger
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features In-display Fingerprint Sensor; Noise Filtration UFS 2.1 Storage; Noise Filtration
2-minute Review [Positives]
  • Very similar to the Realme X - beautiful, 'shimmering' rear (plastic) panel, and a modern, notch-less 6.5-inch OLED screen - easily one of the best, most premium looking phones in this price bracket
  • The notch-less display spans almost edge to edge, with a pop-up selfie camera mechanism (which is quite something to have, in this price bracket)
  • Fairly fast in-display fingerprint reader
  • The pop-up camera on the Oppo K3 has a very quick ejection and retraction mechanism, which makes face recognition work pretty seamlessly too
  • Very good 6.5-inch OLED screen - colors are lively, with deep blacks
  • The lack of a notch really helps make the screen appear immersive, and consuming content on the screen is a pleasure
  • ColorOS UI is now much more streamlined than before - there’s also now an app drawer, and a useful shortcut menu accessed by swiping from the sides
  • The gesture navigation is nice and intuitive too
  • Thankfully, it's not ad-strewn either, like some of the recent phones from Xiaomi
  • Very good performance backed by the powerful Snapdragon 710 chipset - everything from daily use to high-end games is smooth
  • GPU performance is an especially strong point of the Snapdragon 710, so if you are into gaming, the phone tends to comfortably outperform rivals
  • Very good set of dual rear cameras (16MP+2MP) and front camera (16MP)
  • Good overall image quality in daylight, and fairly good quality in low-light as well
  • Night mode is pretty effective too
  • Good portraits
  • Pretty good selfies too, from the 16MP front camera
  • Oppo's EIS does a solid job of stabilization during videos at up to 1080p/30fps
  • Support for 4K video recording (without EIS though)
  • Overall, the Oppo K3 is among the very good camera setups of this price bracket, comparable to the excellent cameras on the Redmi Note 7 Pro and the Realme 3 Pro - and pretty close to it's cousin Realme X as well (just a notch behind perhaps)
  • The Dolby Atmos-boosted speaker sounds pretty rich and gets fairly loud
  • Also has support for FM radio, unlike Realme X
  • Good battery life with a 3750 mAh cell - you will comfortably get a day of use, even with heavy usage
  • The class-leading VOOC fast-charging nicely complements the long battery life - it fills a completely depleted battery in 1:18h and it's at the 50% mark 30 minutes into it - which are some excellent numbers
  • The Oppo K3 looks like an incredible value package, no matter how you look at it - and is in fact almost identical to the Realme X - both these phones will inevitably disrupt this price bracket in a big way - what you get is top-end specs, a 'full screen' AMOLED display with a pop-up selfie camera, very good performance, an excellent set of cameras, and super fast charging - you can't ask for more
  • Between Oppo K3 and Realme X - the choice will ultimately boil down to your preference of colour and might even be based on ready availability of one or the other - and between the two base models, you choice will come down to whether you value RAM or storage more - but basically, you can't go wrong with either
  • Decent looks and build quality - with a a unibody polycarbonate design, and glossy finish on the back panel - quite similar to the M30 - the only major visual difference is that the triple camera setup gets a wider, rectangular module to house the LED flash and "48 megapixel" branding
  • The plastic body keeps the phone feeling relatively lightweight at 188 grams, which is mighty impressive for a phone packing a big 6000mAh battery
  • It also feels great to hold with a seamless curved panel that meets the display up front
  • Modern, Infinity-U front - bezels around the screen are slim, except for a slightly thick chin - you still get around 90 per cent screen-to-body ratio, which is great
  • Fingerprint sensor at the back is easy to reach
  • Gorgeous, 6.4-inch FHD+ (2340x1080) Super AMOLED Infinity-U display with excellent viewing angles, and brightness levels - easily one of the best displays in the price bracket
  • It also comes with "Widevine L1" certification, which helps stream content in crisp HD resolution
  • Blacks are deep on the AMOLED display, which looks good with Night mode enabled
  • Samsung's OneUI is today one of the more clean, refined Android UIs that's especially well optimized for large displays like this
  • One UI also brings in other useful stuff, like a System-wide Night mode (which turns the background completely black, and looks great on the M30s' AMOLED display), and Always On Display option
  • Good, strong performance with the Exynos 9611 at the core (similar to Snapdragon 665) - everyday performance to high-end gaming - everything is handled smoothly
  • Decent rear camera setup - 48MP main sensor + 8MP wide-angle lens + 5MP depth sensor
  • With the primary lens, you get bright and attractive photos in daylight conditions with vibrant colours and good contrast - dynamic range is also wide and noise is controlled
  • Switching to the wide-angle lens will offer a new perspective, letting you click a wider area at close range to the subject (it is best used in daylight, however, as wide-angle captures look grainy and noise indoors or in low light)
  • The dedicated Night mode can be used with the main camera - it comes in handy in low-light conditions, extending the shutter time to allow more light into the frame - making for some decent low-light photos
  • Live Focus does a decent job at separating the subject from the background, and giving good bokeh shots
  • The 16MP selfie camera too does a decent job when it comes to capturing selfies outdoors under bright light (though it starts to struggle indoors and in low light, offering softer selfies with a lot of grain)
  • Overall, the cameras on the M30s are decent for the price bracket, even though they are not the best (that title is shared by Xiaomi and Realme phones)
  • Monster 6000mAh battery delivers an incredible 2-3 days of usage easily, making for one of the largest battery life smartphones currently available
  • Supports 15W fast charging
  • With the M-series performing well for Samsung, M30s is well-set to add to that success, delivering a good all-round package with one key differentiator - an incredible battery life - if that is one of your primary concerns in a phone, then the M30s is a no-brainer (if on the other hand you want the best camera or best performance for your buck, you can look at Xiaomi or Realme phones in this price bracket)
2-minute Review [Negatives]
  • ColorOS still has some bloatware though, and is not quite as clean/simple as stock Android
  • The power button and volumes are quite flush with the frame which means they lack that tactile, clicky feel
  • Lacks the premium finish of some of its competitors
  • Focusing is slow at times
  • Overall low light camera performance still feels lacking
Expert Reviews
  1. You can't go wrong with it
    gadgets.ndtv.com in-depth Read Review »
  2. A good smartphone in the mid-range segment...Very similar to Realme X - choosing between the 2 will be an individual preference
    bgr.in in-depth Read Review »
  3. A really good performer...If your budget is under Rs 20,000, Oppo K3 can easily be considered given what it offers
    indianexpress.com in-depth Read Review »
  4. A very good option....deserves your attention
    timesnownews.com in-depth Read Review »
  5. Largely similar to the Realme X...One of the best phones under Rs 20,000 right now
    indiatoday.in in-depth Read Review »
  6. thequint.com hands-on Read Review »
  1. It's one of the easiest recommendations to make from Samsung's low- to mid-range portfolio
    gsmarena.com in-depth Read Review »
  2. Redmi and Realme phones are still better all-rounders than the M30s, but if your use case calls for extreme battery backups, play a lot of games or are brand conscious, the M30s might be well-suited for you
    techradar.com in-depth Read Review »
  3. If battery life ranks very high on your priority list, then you should consider the Galaxy M30s
    gadgets.ndtv.com in-depth Read Review »
  4. Overall, the Galaxy M30s is good choice at competitive price
    fonearena.com in-depth Read Review »
  5. Decent package
    bgr.in in-depth Read Review »
  6. Doesn’t do enough to be a stand-out recommendation
    androidauthority.com in-depth Read Review »
  7. A flawless device, especially considering how affordable it is
    indianexpress.com in-depth Read Review »
  8. Looks impressive...will act as a real threat to existing devices in the same price segment from the likes of Xiaomi and Realme
    economictimes.indiatimes.com in-depth Read Review »
  9. Specifically recommended for people who don't’ want to lug a power bank all the time....For them, the Galaxy M30s is definitely worth considering
    thequint.com in-depth Read Review »
  10. If you are looking for a smartphone that offers long battery life and good display, consider the M30s
    themobileindian.com in-depth Read Review »
  11. The Galaxy M30s is okay
    timesnownews.com in-depth Read Review »
  12. Samsung Galaxy M30s has fantastic battery life, good cameras and a bright AMOLED display.. while it has some issues, it is still recommended if you have a budget of around Rs 15,000
    notebookcheck.net in-depth Read Review »
  13. A good option to buy in the price range
    financialexpress.com in-depth Read Review »
  14. Checks almost all checkboxes for the perfect mid-range device
    deccanchronicle.com in-depth Read Review »
  15. The Galaxy M30s is an ideal phone if you want a device that can handle excruciating hours of streaming, gaming and camera use, apart from the usual social media use
    business-standard.com in-depth Read Review »
  16. At this price point, the Galaxy M30s is a great choice for anyone looking for a smartphone with a long-lasting battery
    indiatoday.in in-depth Read Review »
  17. If you are one of those who don't like to use a portable charger or frequently forget to charge your device, then this smartphone is no less than a gift
    zeebiz.com in-depth Read Review »
  18. techpp.com hands-on Read Review »
User Reviews
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 2
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