Oppo K9x vs Samsung Galaxy S20 Ultra: A Clash of Titans
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🏆 Quick Verdict
The Samsung Galaxy S20 Ultra is the clear winner in overall performance, camera quality, and features. However, the Oppo K9x provides exceptional value for its price, making it a compelling choice for budget-conscious gamers. It's a battle of premium versus affordability.
| PHONES | ||
|---|---|---|
| Phone Names | Oppo K9x | Samsung Galaxy S20 Ultra |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 5, 7, 8, 28, 34, 38, 39, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 |
| 5G bands | 1, 28, 41, 77, 78 SA/NSA | - |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE |
| CDMA2000 1x | CDMA2000 1xEV-DO | |
| Launch | ||
|---|---|---|
| Announced | 2021, December 23 | 2020, February 11 |
| Status | Available. Released 2021, December 27 | Available. Released 2020, March 15 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame |
| Dimensions | 162.2 x 74.8 x 8.8 mm (6.39 x 2.94 x 0.35 in) | 166.9 x 76 x 8.8 mm (6.57 x 2.99 x 0.35 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM + eSIM· Nano-SIM + Nano-SIM |
| Weight | 194 g (6.84 oz) | 220 g (7.76 oz) |
| - | IP68 dust/water resistant (up to 1.5m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | Aluminosilicate glass | Corning Gorilla Glass 6 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) | 1440 x 3200 pixels, 20:9 ratio (~511 ppi density) |
| Size | 6.49 inches, 102.2 cm2 (~84.2% screen-to-body ratio) | 6.9 inches, 114.0 cm2 (~89.9% screen-to-body ratio) |
| Type | IPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM) | Dynamic AMOLED 2X, 120Hz, HDR10+, 1400 nits (peak) |
| - | Always-on display 120Hz@FHD/60Hz@QHD refresh rate | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 810 (6 nm) | Exynos 990 (7 nm+)Qualcomm SM8250 Snapdragon 865 5G (7 nm+) |
| GPU | Mali-G57 MC2 | Mali-G77 MP11Adreno 650 |
| OS | Android 11, ColorOS 11.1 | Android 10, upgradable to Android 13, One UI 5 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC | microSDXC (uses shared SIM slot) |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM | 128GB 12GB RAM, 512GB 16GB RAM |
| UFS 2.2 | UFS 3.0 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, HDR, panorama | LED flash, auto-HDR, panorama |
| Single | 16 MP, f/2.0, 26mm (wide), 1/3.0”, 1.0µm | - |
| Triple | 64 MP, f/1.7, 26mm (wide), 1/1.97”, 0.7µm, PDAF 2 MP (macro) Auxiliary lens | 108 MP, f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, OIS 48 MP, f/3.5, 103mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 4x optical zoom, 10x 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) |
| Video | 1080p@30fps, gyro-EIS | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS |
| Selfie camera | ||
|---|---|---|
| Features | - | HDR |
| Single | 16 MP, f/2.0, 26mm (wide), 1/3.0”, 1.0µm | 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF |
| Video | 1080p@30fps | 4K@30/60fps, 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | No |
| 35mm jack | Yes | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
| - | 32-bit/384kHz audio Tuned by AKG | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.1, A2DP, LE, aptX | 5.0, A2DP, LE |
| NFC | No | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, BDS, GALILEO |
| Radio | No | FM radio (USA & Canada only) |
| USB | USB Type-C 2.0, OTG | USB Type-C 3.2, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
| - | Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) | |
| Battery | ||
|---|---|---|
| Charging | 33W wired, 50% in 27 min Reverse wired | 45W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless |
| Type | Li-Po 5000 mAh | Li-Ion 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Blue | Cosmic Grey, Cosmic Black, Cloud White |
| Models | PGCM10 | SM-G988B/DS |
| Price | About 190 EUR | About 690 EUR |
| SAR | - | 0.94 W/kg (head) 0.95 W/kg (body) |
| SAR EU | - | 0.32 W/kg (head) 1.56 W/kg (body) |
Oppo K9x
- Excellent value for money
- Good gaming performance for the price
- 90Hz refresh rate display
- Reverse wired charging
- Lower overall performance compared to flagship phones
- IPS LCD display (not as vibrant as AMOLED)
- Camera not as advanced as flagship models
Samsung Galaxy S20 Ultra
- Flagship performance
- Exceptional camera system
- Stunning AMOLED display with 120Hz refresh rate
- Wireless charging and reverse wireless charging
- High price
- Large and heavy design
- Battery life can be impacted by heavy usage
Display Comparison
The Galaxy S20 Ultra boasts a stunning 6.9-inch Dynamic AMOLED 2X display with a 120Hz refresh rate and HDR10+ support, offering vibrant colors and smooth visuals. The Oppo K9x features a 6.5-inch IPS LCD with a 90Hz refresh rate. While the K9x's refresh rate is respectable, the S20 Ultra's display is significantly superior in terms of color accuracy, brightness, and overall quality.
Camera Comparison
The Galaxy S20 Ultra's camera system is a standout feature, offering incredible versatility with its multiple lenses, including a 108MP main sensor, periscope zoom lens, and ultra-wide lens. The Oppo K9x has a decent camera setup, but it can't compete with the S20 Ultra's image quality, zoom capabilities, and overall features.
Performance
The Galaxy S20 Ultra, with its Snapdragon 865 or Exynos 990 (depending on region), delivers significantly faster performance than the Oppo K9x's Dimensity 810. Expect smoother multitasking, faster app loading times, and better gaming performance on the S20 Ultra. The K9x is still capable, but the S20 Ultra is in a different league.
Battery Life
Both phones offer decent battery life. The Galaxy S20 Ultra has a larger battery capacity and supports faster 45W wired charging and 15W wireless charging. The Oppo K9x offers 33W wired charging and reverse wired charging, providing a convenient power boost.
Buying Guide
The Oppo K9x is ideal for gamers and users seeking a solid, affordable smartphone with good performance. The Samsung Galaxy S20 Ultra is perfect for those who demand the absolute best in camera technology, performance, and a premium experience, regardless of price.