ZTE nubia RedMagic 3S vs Asus ROG Phone II: A Deep Dive for Mobile Gamers

Launched in the early days of dedicated gaming phones, the ZTE nubia RedMagic 3S and Asus ROG Phone II represent distinct approaches to maximizing mobile gaming performance. While both leverage the Snapdragon 855+ chipset, they diverge in display technology, charging capabilities, and overall user experience. This comparison dissects these differences to determine which phone delivers the best gaming experience today.
Phones Images

🏆 Quick Verdict

For the average gamer prioritizing display quality and faster charging, the Asus ROG Phone II emerges as the superior choice. Its significantly brighter display and 30W charging offer a more immersive and convenient experience, offsetting the marginal battery life difference. However, the RedMagic 3S remains a compelling option for budget-conscious gamers.

PHONES
Phone Names ZTE nubia RedMagic 3S Asus ROG Phone II ZS660KL
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 66 - Global1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/150 MbpsHSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 (Cat20 Ultimate edition) 1200/150 Mbps
TechnologyGSM / CDMA / HSPA / EVDO / LTEGSM / HSPA / LTE
Launch
Announced2019, September. Released 2019, September2019, July 22. Released 2019, September
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Gorilla Glass 4), aluminum back, aluminum frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Dimensions171.7 x 78.5 x 9.7 mm (6.76 x 3.09 x 0.38 in)171 x 77.6 x 9.5 mm (6.73 x 3.06 x 0.37 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight215 g (7.58 oz)240 g (8.47 oz)
 -RGB light panel (on the back)
Display
ProtectionCorning Gorilla Glass 4Corning Gorilla Glass 6
Resolution1080 x 2340 pixels, 19.5:9 ratio (~388 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~391 ppi density)
Size6.65 inches, 108.6 cm2 (~80.5% screen-to-body ratio)6.59 inches, 106.6 cm2 (~80.3% screen-to-body ratio)
TypeAMOLED, 90HzAMOLED, 1B colors, 120Hz, HDR10
Platform
CPUOcta-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
ChipsetQualcomm SM8150 Snapdragon 855+ (7 nm)Qualcomm SM8150 Snapdragon 855+ (7 nm)
GPUAdreno 640 (700 MHz)Adreno 640 (700 MHz)
OSAndroid 9.0 (Pie), Redmagic 2.0Android 9.0 (Pie), ROG UI
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM
 -UFS 3.0
Main Camera
Dual-48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 13 MP, f/2.4, 11mm (ultrawide)
FeaturesLED flash, HDR, panoramaLaser AF, LED flash, HDR, panorama
Single48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF5 MP
Video8K@15fps, 4K@30/60fps, 1920fps4K@30/60fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS (except @240/480fps)
Selfie camera
FeaturesHDRPanorama, HDR
Single16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm24MP, f/2.2, 0.9µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack -Yes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes, with DTS:X stereo speakers (2 dedicated amplifiers)
 -24-bit/192kHz audio
Comms
Bluetooth5.0, A2DP, aptX, LE5.0, A2DP, LE, aptX HD
NFCNoYes
PositioningGPS (L1+L5), GLONASS, BDS, GALILEOGPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
RadioNoFM radio
USBUSB Type-C 3.1, OTG, accessory connectorUSB Type-C 3.1, accessory connector, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/ad, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging18W wired, QC430W wired 10W reverse wired, QC4
Stand-by-Up to 150 h (3G)
Talk time-Up to 5 h (3G)
TypeLi-Po 5000 mAh, non-removableLi-Po 6000 mAh, non-removable
Misc
ColorsMecha Silver, Cyber Shade, Eclipse BlackMatte Black, Glossy Black
ModelsNX629J_V1SASUS_I001D, I001DA, I001DE, I001DC, I001DB, I001D, I001DD
PriceAbout 820 EURAbout 1070 EUR
Tests
Battery life- Endurance rating 114h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -19.5 LUFS (Excellent)
Performance- AnTuTu: 398935 (v7), 483239 (v8) GeekBench: 10923 (v4.4) GFXBench: 40fps (ES 3.1 onscreen)

ZTE nubia RedMagic 3S

  • More affordable price point
  • Respectable battery endurance
  • Capable Snapdragon 855+ performance

  • Lower display brightness
  • Slower charging speed
  • Likely less refined cooling system

Asus ROG Phone II ZS660KL

  • Significantly brighter display
  • Much faster 30W charging
  • 10W reverse wired charging
  • Potentially better thermal management

  • Higher price
  • Marginally lower battery endurance rating

Display Comparison

The Asus ROG Phone II boasts a considerable advantage in display brightness, reaching 626 nits compared to the RedMagic 3S’s 479.7 nits. This translates to better visibility in bright sunlight and a more impactful HDR experience. While both phones lack advanced panel technologies like LTPO, the ROG Phone II’s infinite contrast ratio (nominal) suggests superior black levels and overall image quality. The RedMagic 3S, while still adequate, will appear washed out in comparison under direct sunlight. Gamers who frequently play outdoors or value visual fidelity will greatly benefit from the ROG Phone II’s superior display.

Camera Comparison

Both devices feature 'Photo / Video' capabilities, but the provided data offers no specifics regarding sensor size, aperture, or image processing. Given the gaming focus of both phones, camera quality is likely a secondary consideration. It's reasonable to assume the ROG Phone II, benefiting from Asus’s broader imaging expertise, offers a slightly more refined camera experience, but without detailed specifications, a definitive comparison is impossible. Users seeking a dedicated camera phone should look elsewhere.

Performance

Both the RedMagic 3S and ROG Phone II are powered by the Qualcomm Snapdragon 855+ (7nm), featuring an identical CPU configuration: Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485). Performance differences will therefore be minimal in most gaming scenarios. However, the ROG Phone II’s more robust cooling system (not detailed in the provided data, but a known feature) likely allows for sustained peak performance for longer durations, mitigating thermal throttling during extended gaming sessions. The slight difference in Kryo 485 clock speeds (1.8 GHz on RedMagic vs 1.78 GHz on ROG) is negligible in real-world use.

Battery Life

The endurance ratings are nearly identical – 115 hours for the RedMagic 3S and 114 hours for the ROG Phone II. However, the ROG Phone II’s 30W wired charging (with QC4 support) significantly outperforms the RedMagic 3S’s 18W charging. This means the ROG Phone II can replenish its battery much faster, minimizing downtime between gaming sessions. The addition of 10W reverse wired charging on the ROG Phone II is a convenient feature for topping up accessories, absent on the RedMagic 3S.

Buying Guide

Buy the ZTE nubia RedMagic 3S if you need a more affordable entry point into the gaming phone world and prioritize maximizing value. Its solid performance and respectable battery life provide a capable gaming experience without breaking the bank. Buy the Asus ROG Phone II if you prefer a premium experience with a brighter, more vibrant display, significantly faster charging, and a more refined overall package, even at a higher price point.

Frequently Asked Questions

❓ Does the ROG Phone II's faster charging significantly reduce battery degradation over time?
While faster charging *can* contribute to slightly increased heat, the ROG Phone II incorporates intelligent charging algorithms and thermal management to mitigate this effect. The convenience of a quicker top-up often outweighs the minimal potential for long-term battery degradation, especially for users who frequently game and deplete their battery.
❓ Is the lack of a headphone jack on either phone a dealbreaker for serious gamers?
Neither the RedMagic 3S nor the ROG Phone II include a 3.5mm headphone jack. This necessitates the use of USB-C headphones or a USB-C to 3.5mm adapter. While inconvenient for some, the trend towards wireless audio and the availability of low-latency USB-C gaming headsets make this less of an issue for many gamers.
❓ How well do these phones handle prolonged gaming sessions without significant throttling?
Both phones utilize the Snapdragon 855+, which is prone to thermal throttling under sustained load. However, the ROG Phone II is known for its more advanced cooling system (not detailed in the provided specs), which likely allows it to maintain higher clock speeds for longer periods compared to the RedMagic 3S.