Redmi K30 Ultra vs. Samsung Galaxy S20+ 5G: A Deep Dive into Performance and Value

The Xiaomi Redmi K30 Ultra and the Samsung Galaxy S20+ 5G represent different approaches to the flagship experience. The K30 Ultra, released later, aimed to disrupt the market with high-end specs at a significantly lower price point, while the S20+ 5G was Samsung’s mainstream flagship offering, balancing features and premium build quality. This comparison dissects their core components to determine which device delivers the best experience for your money.
Phones Images

🏆 Quick Verdict

For the average user prioritizing value and raw performance, the Xiaomi Redmi K30 Ultra emerges as the winner. Its Dimensity 1000+ chipset delivers comparable, and in some cases superior, performance to the Exynos 990 (and even the Snapdragon 865 variant) found in the S20+, coupled with faster 33W charging. The S20+ 5G counters with a more refined software experience and wireless charging.

PHONES
Phone Names Xiaomi Redmi K30 Ultra Samsung Galaxy S20+ 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G986B
5G bands1, 3, 41, 78, 79 SA/NSA1, 3, 5, 7, 8, 28, 40, 77, 78 SA/NSA/Sub6 - SM-G986B
EDGENo-
GPRSNo-
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1xEV-DO -
Launch
Announced2020, August 11. Released 2020, August 142020, February 11
StatusDiscontinuedAvailable. Released 2020, March 06
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame
Dimensions163.3 x 75.4 x 9.1 mm (6.43 x 2.97 x 0.36 in)161.9 x 73.7 x 7.8 mm (6.37 x 2.90 x 0.31 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Weight213 g (7.51 oz)188 g (6.63 oz)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 6
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1440 x 3200 pixels, 20:9 ratio (~525 ppi density)
Size6.67 inches, 107.4 cm2 (~87.2% screen-to-body ratio)6.7 inches, 108.0 cm2 (~90.5% screen-to-body ratio)
TypeAMOLED, 120Hz, HDR10+, 500 nits (typ)Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Platform
CPUOcta-core (4x2.6 GHz Cortex-A77 & 4x2.0 GHz Cortex-A55)Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USA
ChipsetMediatek Dimensity 1000+ (7 nm)Exynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm+) - USA
GPUMali-G77 MC9Mali-G77 MP11 - GlobalAdreno 650 - USA
OSAndroid 10, MIUI 12Android 10, upgradable to Android 13, One UI 5.1
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS-
Main Camera
FeaturesDual-LED dual-tone flash, HDR, panoramaLED flash, auto-HDR, panorama
Quad64 MP, f/1.9, 26mm (wide), 1/1.73", 0.8µm, PDAF 13 MP, f/2.4, 119˚ (ultrawide), 1.12µm 5 MP, f/2.2, 50mm (telephoto macro), AF Auxiliary lens-
Single8 MP, AF-
Triple-12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video 0.3 MP, TOF 3D, f/1.0, (depth)
Video4K@30fps, 1080p@30/60/120/240/960fps; gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Selfie camera
FeaturesHDRHDR
SingleMotorized pop-up 20 MP, (wide)10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Video1080p@30fps, 720p@120fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio -
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.0, A2DP, LE
Infrared portYes-
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5)GPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 2.0, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Battery
Charging33W wired, PD, QC4, 100% in 58 min25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Talk timeUp to 11 h 30 min (multimedia)-
TypeLi-Po 4500 mAhLi-Ion 4500 mAh
Misc
ColorsMoonlight White, Midnight Black, Mint GreenCosmic Black, Cosmic Grey, Cloud Blue, Cloud White, Aura Red, Aura Blue
ModelsM2006J10CSM-G986, SM-G986F, SM-G986F/DS, SM-G986U, SM-G986U1, SM-G9860, SM-G986B/DS, SM-G986N, SM-G986B, SM-G986W, SCG02
PriceAbout 250 EUR$ 174.17 / C$ 684.99 / € 299.97
SAR-1.08 W/kg (head)     1.02 W/kg (body)
SAR EU-1.09 W/kg (head)     1.57 W/kg (body)

Xiaomi Redmi K30 Ultra

  • Faster 33W charging
  • Potentially better raw performance with Dimensity 1000+
  • More affordable price

  • Likely less refined software experience (MIUI)
  • No wireless charging

Samsung Galaxy S20+ 5G

  • Premium build quality and design
  • Wireless and reverse wireless charging
  • More polished software experience (One UI)

  • Slower 25W charging
  • Exynos 990 potentially prone to throttling
  • Higher price

Display Comparison

While both devices feature 120Hz displays, the specifics differ. The Galaxy S20+ 5G boasts a Dynamic AMOLED 2X panel, known for its vibrant colors and excellent outdoor visibility, though specific nit brightness isn't provided. The K30 Ultra’s display specs are not provided, but given its price point, it likely utilizes an IPS LCD panel, potentially sacrificing some color accuracy and contrast compared to Samsung’s AMOLED. The S20+’s higher resolution (likely 1440p vs. the K30 Ultra’s 1080p) contributes to a sharper image, though the difference is less noticeable on a smaller screen.

Camera Comparison

Camera performance is difficult to assess without detailed sensor information. The Galaxy S20+ 5G likely features a more sophisticated camera system with larger sensors and advanced image processing algorithms, benefiting from Samsung’s long-standing expertise in mobile photography. The K30 Ultra’s camera specs are not provided, but its price suggests a less premium sensor setup. The S20+’s inclusion of OIS (Optical Image Stabilization) is a significant advantage for capturing stable photos and videos, particularly in low-light conditions. The K30 Ultra’s camera system is likely focused on providing a versatile experience, but may not match the S20+’s image quality in challenging scenarios.

Performance

The chipset is the core battleground. The Redmi K30 Ultra’s Mediatek Dimensity 1000+ (7nm) features an octa-core CPU with Cortex-A77 cores clocked at 2.6GHz, offering strong multi-core performance. The Galaxy S20+ 5G’s Exynos 990 (7nm+) – or Snapdragon 865 (7nm+) in the US – presents a more complex picture. The Exynos 990’s Mongoose M5 cores, while clocked slightly higher at 2.73GHz, have historically been less efficient than the Cortex-A77, potentially leading to thermal throttling under sustained load. The Snapdragon 865 variant in the US model offers better sustained performance and efficiency. Both phones utilize similar RAM configurations, but the K30 Ultra’s LPDDR5 RAM may provide a slight edge in memory bandwidth.

Battery Life

The Redmi K30 Ultra’s 33W wired charging is a clear advantage over the Galaxy S20+ 5G’s 25W charging. The K30 Ultra can reach 100% charge in just 58 minutes, while the S20+ takes considerably longer. The S20+ 5G offers 15W wireless charging and 4.5W reverse wireless charging, features absent on the K30 Ultra. While battery capacity isn’t specified for either device, the faster charging of the K30 Ultra mitigates the impact of a potentially smaller battery, providing quicker top-ups throughout the day.

Buying Guide

Buy the Xiaomi Redmi K30 Ultra if you need uncompromising performance for gaming and demanding tasks, prioritize fast charging speeds, and are comfortable with Xiaomi’s MIUI software. Buy the Samsung Galaxy S20+ 5G if you prefer a more polished software experience, require wireless charging and reverse wireless charging capabilities, and value the brand recognition and ecosystem of Samsung.

Frequently Asked Questions

❓ Does the Exynos 990 in the Galaxy S20+ 5G overheat during extended gaming sessions?
The Exynos 990 has been known to exhibit thermal throttling under sustained load, particularly during demanding games. While Samsung implemented cooling solutions, the Dimensity 1000+ in the K30 Ultra generally offers better thermal efficiency, potentially leading to more consistent performance during long gaming sessions.
❓ Is the 33W charging on the Redmi K30 Ultra significantly faster in real-world use?
Yes, the 33W charging on the K30 Ultra is noticeably faster than the 25W charging on the S20+ 5G. The K30 Ultra can fully charge in approximately 58 minutes, while the S20+ 5G takes considerably longer, making the K30 Ultra a better choice for users who frequently need to top up their battery quickly.
❓ How does the software experience differ between MIUI on the K30 Ultra and One UI on the S20+ 5G?
One UI on the S20+ 5G is generally considered more polished and refined, offering a cleaner interface and smoother animations. MIUI on the K30 Ultra is feature-rich but can be more cluttered and prone to occasional software quirks. Users who prioritize a streamlined experience may prefer the S20+ 5G, while those who enjoy customization options may appreciate MIUI.