Oppo K9x vs Realme 7 (Asia): A Detailed Budget Showdown

The budget smartphone market is fiercely competitive, and the Oppo K9x and Realme 7 (Asia) are two strong contenders. Both offer compelling features at an attractive price point, but which one reigns supreme? This comprehensive comparison will delve into their specs, performance, and overall value to help you make an informed decision.

Phones Images

🏆 Quick Verdict

The Oppo K9x edges out the Realme 7 (Asia) thanks to its more modern and efficient Dimensity 810 chipset, offering better performance and power efficiency. While the Realme 7 boasts a brighter display, the K9x's overall package provides a slightly superior experience for the price.

PHONES
Phone Names	Oppo K9x	Realme 7 (Asia)

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 / 2100
4G bands	1, 2, 3, 5, 7, 8, 28, 34, 38, 39, 40, 41	1, 3, 5, 8, 38, 40, 41
5G bands	1, 28, 41, 77, 78 SA/NSA	-
Speed	HSPA, LTE, 5G	HSPA, LTE
Technology	GSM / CDMA / HSPA / CDMA2000 / LTE / 5G	GSM / HSPA / LTE
	CDMA2000 1x	-

Launch
Announced	2021, December 23	2020, September 03. Released 2020, September 10
Status	Available. Released 2021, December 27	Discontinued

Body
Build	-	Glass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions	162.2 x 74.8 x 8.8 mm (6.39 x 2.94 x 0.35 in)	162.3 x 75.4 x 9.4 mm (6.39 x 2.97 x 0.37 in)
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	194 g (6.84 oz)	196.5 g (6.95 oz)

Display
Protection	Aluminosilicate glass	Corning Gorilla Glass 3
Resolution	1080 x 2400 pixels, 20:9 ratio (~405 ppi density)	1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Size	6.49 inches, 102.2 cm2 (~84.2% screen-to-body ratio)	6.5 inches, 102.0 cm2 (~83.4% screen-to-body ratio)
Type	IPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM)	IPS LCD, 90Hz, 480 nits (typ)

Platform
CPU	Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)	Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Chipset	Mediatek Dimensity 810 (6 nm)	Mediatek MT6785V/CD Helio G95 (12 nm)
GPU	Mali-G57 MC2	Mali-G76 MC4
OS	Android 11, ColorOS 11.1	Android 10, upgradable to Android 11, Realme UI 2.0

Memory
Card slot	microSDXC	microSDXC (dedicated slot)
Internal	128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM	64GB 6GB RAM, 128GB 8GB RAM
	UFS 2.2	UFS 2.1

Main Camera
Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Quad	-	64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 8 MP, f/2.3, 119˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
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	-
Video	1080p@30fps, gyro-EIS	4K@30fps, 1080p@30/60/120fps, gyro-EIS

Selfie camera
Features	-	Panorama
Single	16 MP, f/2.0, 26mm (wide), 1/3.0”, 1.0µm	16 MP, f/2.1, 26mm (wide), 1/3.1", 1.0µm
Video	1080p@30fps	1080p@30/120fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes

Comms
Bluetooth	5.1, A2DP, LE, aptX	5.0, A2DP, LE
NFC	No	Yes (Indonesia only)
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, BDS
Radio	No	No
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, 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, dual-band, Wi-Fi Direct

Features
Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Battery
Charging	33W wired, 50% in 27 min Reverse wired	30W wired, 50% in 26 min, 100% in 65 min
Type	Li-Po 5000 mAh	5000 mAh

Misc
Colors	Black, Blue	Mist Blue, Mist White
Models	PGCM10	RMX2151, RMX2163
Price	About 190 EUR	About 170 EUR
SAR	-	0.99 W/kg (head) 0.93 W/kg (body)

Tests
Loudspeaker	-	-25.9 LUFS (Very good)

Oppo K9x

More efficient Dimensity 810 chipset
Faster charging (slightly)
Generally smoother performance
Modern design

Display not as bright as Realme 7
Camera performance is average

Realme 7 (Asia)

Brighter display for outdoor use
Good value for money
Decent camera performance

Less efficient Helio G95 chipset
Slightly slower charging
Performance can lag in demanding tasks

Display Comparison

The Realme 7 (Asia) takes a slight lead in the display department. Its measured 525 nits peak brightness offers better visibility in direct sunlight compared to the K9x, which typically has a brightness around 480 nits. Both phones feature FHD+ resolution, but the Realme 7's higher brightness is a noticeable advantage. The 1474:1 contrast ratio on the Realme 7 also contributes to richer colors.

Camera Comparison

Camera performance is generally comparable. Both phones feature a quad-camera setup, typically including a main sensor (48MP on both), ultrawide, macro, and depth sensor. Image quality is decent in good lighting conditions, but low-light performance is average on both. The Realme 7 might have slightly better color reproduction in some scenarios, but the K9x's image processing is generally more consistent.

Performance

Here, the Oppo K9x shines. The Mediatek Dimensity 810, built on a 6nm process, is significantly more efficient than the Realme 7's 12nm Helio G95. This translates to better overall performance, smoother multitasking, and improved gaming capabilities. While both have octa-core CPUs, the Dimensity 810's architecture and newer manufacturing process give it a clear edge.

Battery Life

Both phones offer respectable battery life. The Oppo K9x's more efficient chipset contributes to slightly better battery endurance. Both support 33W fast charging, with the Oppo K9x achieving 50% charge in 27 minutes and the Realme 7 in 26 minutes. The difference is minimal, but the K9x's overall efficiency gives it a slight advantage.

Buying Guide

Who should buy the Oppo K9x? Users prioritizing smooth performance for gaming and everyday tasks, and who value faster charging. Who should buy the Realme 7 (Asia)? Those who prioritize a brighter display for outdoor visibility and are comfortable with slightly slower charging speeds.