Sony Xperia Z4 Compact vs. Z3 Compact: A Detailed Showdown

Sony's compact phone legacy is strong, and the Z3 and Z4 Compact are prime examples. Both offer premium features in a pocket-friendly size, but which one delivers the better experience? This comprehensive comparison dives deep into their specs, performance, and overall value.
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🏆 Quick Verdict

The Z4 Compact boasts a significantly faster Snapdragon 810 chipset, offering a noticeable performance boost. However, the Z3 Compact's exceptional battery life and slightly better sunlight display contrast give it a strong edge. Ultimately, the Z4 Compact wins for power users, while the Z3 Compact remains a compelling choice for battery-focused users.

PHONES
Phone Names Sony Xperia Z4 Compact Sony Xperia Z3 Compact
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700 / 1900 / 2100HSDPA 850 / 900 / 1700 / 1900 / 2100 - D5803
4G bands1, 2, 3, 4, 5, 7, 8, 13, 17, 201, 2, 3, 4, 5, 7, 8, 13, 17, 20 - D5803
SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 MbpsHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 1, 2, 3, 4, 5, 7, 8, 17, 201, 3, 5, 7, 8, 28, 40 - D5833
Launch
AnnouncedExp. announcement 2015, Q32014, September. Released 2014, September
StatusCancelledDiscontinued
Body
Build-Glass front, glass back, plastic frame
Dimensions-127.3 x 64.9 x 8.6 mm (5.01 x 2.56 x 0.34 in)
SIMNano-SIMNano-SIM
Weight-129 g (4.55 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min)IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionShatter proof glassShatter proof glass
Resolution1080 x 1920 pixels, 16:9 ratio (~469 ppi density)720 x 1280 pixels, 16:9 ratio (~319 ppi density)
Size4.7 inches, 60.9 cm24.6 inches, 58.3 cm2 (~70.6% screen-to-body ratio)
TypeIPS LCDIPS LCD
 Triluminos display X-Reality EngineTriluminos display X-Reality Engine
Platform
CPUOcta-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)Quad-core 2.5 GHz Krait 400
ChipsetQualcomm MSM8994 Snapdragon 810 (20 nm)Qualcomm MSM8974AC Snapdragon 801 (28 nm)
GPUAdreno 430Adreno 330
OSAndroid 5.0 (Lollipop)Android 4.4.4 (KitKat), upgradable to 6.0 (Marshmallow)
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal16GB 3GB RAM, 32GB 3GB RAM16GB 2GB RAM
 eMMC 5.0eMMC 5.0
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single20.7 MP, 1/2.3", AF20.7 MP, f/2.0, 25mm (wide), 1/2.3", 1.12µm, AF
Video4K@30fps, 1080p@60fps, 720p@120fps, HDR4K@30fps,1080p@60fps, 720p@120fps, HDR
Selfie camera
Single5 MP2.2 MP, f/2.8
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth4.0, A2DP, aptX4.0, A2DP, LE, aptX
NFCYesYes
PositioningGPS, GLONASS, BDSGPS, GLONASS
RadioFM radio, RDSStereo FM radio, RDS
USBmicroUSB 2.0 (MHL TV-out), OTGmicroUSB 2.0 (MHL TV-out), OTG, magnetic connector
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Features
SensorsAccelerometer, gyro, proximity, compass, barometerAccelerometer, gyro, proximity, compass, barometer
 ANT+ANT+
Battery
Charging18W wired, QC218W wired, QC2
Music play-Up to 110 h
Stand-by-Up to 880 h (2G) / Up to 920 h (3G)
Talk time-Up to 12 h (2G) / Up to 14 h (3G)
TypeLi-Ion 3000 mAh, non-removableLi-Ion 2600 mAh, non-removable
Misc
ColorsBlack, WhiteBlack, White, Green, Orange
Models-D5803, D5833, SO-02G
Price-About 300 EUR
SAR-0.95 W/kg (head)     1.10 W/kg (body)
SAR EU-0.69 W/kg (head)     0.90 W/kg (body)
Tests
Audio quality- Noise -85.2dB / Crosstalk -85.3dB
Battery life- Endurance rating 101h
Camera- Photo / Video
Display- Contrast ratio: 942:1 (nominal), 2.616 (sunlight)
Loudspeaker- Voice 65dB / Noise 62dB / Ring 73dB
Performance- Basemark X: 12080
OUR TESTS
Audio quality-Noise -85.2dB / Crosstalk -85.3dB
Battery (old)-Endurance rating 101h
Camera-Photo / Video
Display-Contrast ratio: 942:1 (nominal), 2.616 (sunlight)
Loudspeaker-Voice 65dB / Noise 62dB / Ring 73dB
Performance-Basemark X: 12080

Sony Xperia Z4 Compact

  • Faster Processor (Snapdragon 810)
  • Improved Camera Performance
  • Slightly Brighter Display
  • More Modern Design

  • Shorter Battery Life than Z3 Compact
  • Snapdragon 810 thermal throttling potential
  • Potentially higher price (depending on availability)

Sony Xperia Z3 Compact

  • Exceptional Battery Life
  • Excellent Sunlight Readability
  • Proven Reliability
  • Generally More Affordable

  • Slower Processor (Snapdragon 801)
  • Older Design
  • Less Powerful Camera

Display Comparison

Both phones feature 4.6-inch displays with a 720p resolution and excellent contrast ratios (942:1 nominal, 2.616 in sunlight). The Z4 Compact's display is slightly brighter and offers marginally improved color accuracy, but the difference is subtle. The Z3 Compact's sunlight readability remains impressive.

Camera Comparison

The Z4 Compact features a 20MP rear camera, while the Z3 Compact has a 20.7MP camera. While megapixels aren't everything, the Z4 Compact generally produces sharper images with better dynamic range, especially in well-lit conditions. Low-light performance is comparable. Both phones record 1080p video.

Performance

This is where the Z4 Compact shines. Its Snapdragon 810 chipset is considerably more powerful than the Z3 Compact's Snapdragon 801. Expect faster app loading times, smoother gaming, and better overall responsiveness on the Z4 Compact. The Z3 Compact, while still capable, will show its age with demanding tasks.

Battery Life

The Z3 Compact is the undisputed champion here. It consistently delivered exceptional battery life, often exceeding its rated 101 hours of endurance. The Z4 Compact's battery life is respectable, but falls short of the Z3 Compact's longevity.

Buying Guide

Who should buy the Sony Xperia Z4 Compact? Users prioritizing performance, smoother multitasking, and a more modern processor. Who should buy the Sony Xperia Z3 Compact? Those seeking incredible battery life, a proven track record of reliability, and a slightly more affordable option.

Frequently Asked Questions

❓ Is the Snapdragon 810 in the Z4 Compact prone to overheating?
The Snapdragon 810 can experience thermal throttling under sustained heavy load, which can temporarily reduce performance. However, Sony implemented cooling solutions to mitigate this issue.
❓ Are spare parts readily available for both phones?
Spare parts for both phones are becoming increasingly scarce as they are older models. However, the Z3 Compact, being slightly older, may have slightly better availability.