ZTE Axon 20 5G vs Sony Xperia 5 III: A Detailed Comparison of Performance and Battery Life

The ZTE Axon 20 5G arrived as a surprisingly affordable 5G option with an under-display camera, while the Sony Xperia 5 III represents a premium, compact flagship experience. This comparison dissects their core differences, focusing on performance, battery endurance, and display quality to determine which device delivers the best value and user experience.
Phones Images

🏆 Quick Verdict

For the average user prioritizing raw performance and longevity, the Sony Xperia 5 III is the clear winner. Its Snapdragon 888 chipset and 100-hour endurance rating significantly outperform the Axon 20 5G’s Snapdragon 765G and 82-hour rating. However, the Axon 20 5G remains a compelling option for budget-conscious buyers.

PHONES
Phone Names ZTE Axon 20 5G Sony Xperia 5 III
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 38, 40, 41 - Europe1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71 - USA
5G bands78 SA/NSA - Europe1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 71, 77, 78 SA/NSA/Sub6 - USA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 1, 3, 28, 41, 78, 79 SA/NSA - China1, 3, 5, 7, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA/Sub6 - Asia
Launch
Announced2020, September 01. Released 2020, September 102021, April 14
StatusDiscontinuedAvailable. Released 2021, October 08
Body
BuildGlass front, glass back or eco leather back, plastic frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame
Dimensions172.1 x 77.9 x 8 mm (6.78 x 3.07 x 0.31 in)157 x 68 x 8.2 mm (6.18 x 2.68 x 0.32 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight198 g (6.98 oz)168 g (5.93 oz)
 -IP65/IP68 dust/water resistant (up to 1.5m for 30 min)
Display
Protection-Corning Gorilla Glass 6
Resolution1080 x 2460 pixels (~400 ppi density)1080 x 2520 pixels, 21:9 ratio (~449 ppi density)
Size6.92 inches, 107.0 cm2 (~79.8% screen-to-body ratio)6.1 inches, 86.9 cm2 (~81.4% screen-to-body ratio)
TypeOLED, 1B colors, 90HzOLED, 1B colors, 120Hz, HDR BT.2020
 Always-on display-
Platform
CPUOcta-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM7250 Snapdragon 765G 5G (7 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUAdreno 620Adreno 660
OSAndroid 10, MiFavor 10.5Android 11, upgradable to Android 13
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM128GB 8GB RAM, 256GB 8GB RAM
 -UFS 3.X
Main Camera
FeaturesDual-LED dual-tone flash, HDR, panoramaZeiss optics, Zeiss T* lens coating, color spectrum sensor, LED flash, panorama, HDR, eye tracking
Quad64 MP, f/1.8, 25mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 120˚, 16mm (ultrawide) 2 MP (macro) Auxiliary lens-
Single-8 MP, f/2.0, 24mm (wide), 1/4", 1.12µm
Triple-12 MP, f/1.7, 24mm (wide), 1/1.7", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.3, 70mm (telephoto), f/2.8, 105mm (telephoto), 1/2.9", dual pixel PDAF, 3x/4.4x optical zoom, OIS 12 MP, f/2.2, 124˚, 16mm (ultrawide), 1/2.6", dual pixel PDAF
Video4K@30/60fps, 1080p@30fps, gyro-EIS, HDR, 10‑bit video4K@24/25/30/60/120fps HDR, 1080p@30/60/120fps; 5-axis gyro-EIS, OIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.0, (wide), under display8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm
Video1080p@30fps1080p@30fps, 5-axis gyro-EIS
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker YesYes, with stereo speakers
 24-bit/192kHz audio24-bit/192kHz audio Dynamic vibration system
Comms
Bluetooth5.1, A2DP, LE5.2, A2DP, LE, aptX HD, aptX Adaptive
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 3.1, OTGUSB Type-C 3.1, OTG, video output
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compass
 -Native Sony Alpha camera support
Battery
Charging30W wired, QC4, 60% in 30 minWired, PD, 50% in 30 min
TypeLi-Ion 4220 mAhLi-Po 4500 mAh
Misc
ColorsBlack, Gold, Blue, Purple, Sunrise YellowBlack, Green, Pink
ModelsA2121, A2121E, A2121GXQBQ62/G, XQBQ52G.UKCX, XQBQ52B.UKCX, XQ-BQ52, XQ-BQ72, XQ-BQ42, XQ-BQ62, SO-53B
PriceAbout 720 EUR€ 431.90 / £ 199.99
Tests
Battery life Endurance rating 82h Endurance rating 100h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -27.3 LUFS (Good) -26.7 LUFS (Good)
Performance AnTuTu: 320399 (v8) GeekBench: 1957 (v5.1) GFXBench: 18fps (ES 3.1 onscreen) AnTuTu: 708394 (v9) GeekBench: 3549 (v5.1) GFXBench: 53fps (ES 3.1 onscreen)

ZTE Axon 20 5G

  • More affordable price point
  • Functional 5G connectivity
  • Under-display camera (novelty factor)

  • Significantly weaker processor
  • Lower display brightness
  • Shorter battery life

Sony Xperia 5 III

  • Flagship-level performance with Snapdragon 888
  • Brighter and potentially smoother display
  • Longer battery life and endurance

  • Higher price tag
  • May lack expandable storage
  • Compact size may not suit all users

Display Comparison

The Sony Xperia 5 III boasts a significantly brighter display at 590 nits compared to the ZTE Axon 20 5G’s 406 nits. This translates to better visibility outdoors and a more vibrant viewing experience. Both displays share an 'Infinite' (nominal) contrast ratio, suggesting standard OLED performance. While neither specification details refresh rates, Sony’s history with the Xperia line suggests a 120Hz panel, a feature likely absent on the Axon 20 5G, impacting smoothness during scrolling and gaming.

Camera Comparison

Both phones feature 'Photo / Video' capabilities, but the context data lacks specifics. Given Sony’s expertise in imaging, the Xperia 5 III likely benefits from more advanced image processing algorithms and potentially larger sensor sizes. The Snapdragon 888’s image signal processor (ISP) is also more capable than the 765G’s, leading to better low-light performance and dynamic range. Without detailed sensor information, it’s reasonable to assume the Xperia 5 III offers a more refined and versatile camera experience.

Performance

The core difference lies in the chipsets: the ZTE Axon 20 5G utilizes the Qualcomm Snapdragon 765G (7nm), while the Sony Xperia 5 III is powered by the Snapdragon 888 5G (5nm). The 5nm process node of the 888 offers superior power efficiency and transistor density, resulting in substantially higher performance. The Xperia 5 III’s CPU, featuring a Cortex-X1 prime core, further enhances its processing capabilities compared to the Axon 20 5G’s Kryo 475 setup. This gap is particularly noticeable in demanding tasks like video editing and graphically intensive games.

Battery Life

The Sony Xperia 5 III’s endurance rating of 100 hours surpasses the ZTE Axon 20 5G’s 82 hours. While battery capacity isn’t specified, the combination of the more efficient Snapdragon 888 (5nm) and optimized software likely contributes to this advantage. Charging speeds differ as well; the Axon 20 5G supports 30W wired charging with QC4, reaching 60% in 30 minutes, while the Xperia 5 III utilizes PD, achieving 50% charge in the same timeframe. The Xperia 5 III’s superior endurance means less frequent charging, despite a potentially similar charging speed.

Buying Guide

Buy the ZTE Axon 20 5G if you need a functional 5G phone on a tight budget and are willing to compromise on processing power and camera quality. Buy the Sony Xperia 5 III if you prioritize a flagship-level experience, demanding performance for gaming and content creation, and value a longer-lasting battery and brighter display.

Frequently Asked Questions

❓ Is the Snapdragon 765G in the ZTE Axon 20 5G sufficient for demanding games like Genshin Impact?
While the Snapdragon 765G can run Genshin Impact, you'll likely need to lower graphics settings to achieve a smooth frame rate. The Xperia 5 III’s Snapdragon 888 will provide a significantly better gaming experience with higher settings and more consistent performance.
❓ Does the Sony Xperia 5 III experience thermal throttling during extended gaming sessions?
The Snapdragon 888 is known to generate heat, and some throttling is possible during prolonged, intensive gaming. However, Sony’s thermal management solutions, including vapor chamber cooling, are designed to mitigate this effect and maintain stable performance for longer periods than the Axon 20 5G.
❓ How does the under-display camera on the ZTE Axon 20 5G affect image quality?
Under-display camera technology is still in its early stages. The ZTE Axon 20 5G’s implementation typically results in softer images and reduced detail compared to traditional front-facing cameras. It's a novelty feature, but not ideal for high-quality selfies.
❓ What type of charging protocol does the Sony Xperia 5 III support, and is a fast charger included in the box?
The Sony Xperia 5 III supports Power Delivery (PD) for wired charging. A fast charger is *not* typically included in the box, requiring users to purchase one separately to achieve the fastest charging speeds.