Sony Xperia Z5 vs Xperia Z2a: A Detailed Comparison

The Sony Xperia Z5 and Z2a represent different eras of Sony's smartphone ambitions. Both offer a premium feel and a focus on photography, but significant hardware differences separate them. This comparison dives deep into their strengths and weaknesses to help you decide which one is right for you.
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🏆 Quick Verdict

The Xperia Z5 is the clear winner, boasting a significantly more powerful processor, improved camera, and longer battery life. However, the Z2a remains a capable device, especially for those seeking a compact and affordable vintage option. The Z5's Snapdragon 810 offers a noticeable performance boost.

PHONES
Phone Names Sony Xperia Z5 Sony Xperia Z2a
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100 - E6603, E6653HSDPA 850 / 900 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40 - E6603, E66531, 2, 3, 5, 7, 8, 28
SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps (E6603), LTE Cat6 300/50 Mbps (E6653)HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2015, September 02. Released 2015, October 022014, June. Released 2014, July
StatusDiscontinuedDiscontinued
Body
BuildGlass front, glass back, aluminum frame-
Dimensions146 x 72 x 7.3 mm (5.75 x 2.83 x 0.29 in)137 x 72 x 11 mm (5.39 x 2.83 x 0.43 in)
SIMNano-SIMMicro-SIM
Weight154 g (5.43 oz)163 g (5.75 oz)
 IP68 dust/water resistant (up to 1.5m for 30 mins)IP58 dust proof and water resistant over 1.5 meter and 30 minutes
Display
ProtectionScratch-resistant glass, oleophobic coatingShatter proof glass
Resolution1080 x 1920 pixels, 16:9 ratio (~428 ppi density)1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
Size5.2 inches, 73.2 cm2 (~69.6% screen-to-body ratio)5.0 inches, 68.9 cm2 (~69.9% 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 2.3 GHz Krait 400
ChipsetQualcomm MSM8994 Snapdragon 810 (20 nm)Qualcomm MSM8974AB Snapdragon 801 (28 nm)
GPUAdreno 430Adreno 330
OSAndroid 5.1.1 (Lollipop), upgradable to 7.1.1 (Nougat)Android 4.4.2 (KitKat)
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal32GB 3GB RAM16GB 3GB RAM
 eMMC 5.0eMMC 5.0
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single23 MP, f/2.0, 24mm (wide), 1/2.3", PDAF20.7 MP, 1/2.3", AF
Video4K@30fps, 1080p@60fps, 720p@120fps, HDR4K@30fps, 1080p@60fps, 720p@120fps, HDR
Selfie camera
FeaturesHDR-
Single5.1 MP, f/2.4VGA
Video1080p@30fps720p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio -
Comms
Bluetooth4.1, A2DP, aptX4.0, A2DP, aptX
NFCYesYes
PositioningGPS, GLONASS/ BDS (market dependant)GPS, GLONASS
RadioFM radio, RDSFM radio, RDS
USBmicroUSB 2.0 (MHL 3 TV-out), OTGmicroUSB 2.0 (MHL 3 TV-out), OTG
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
SensorsFingerprint (side-mounted; EU model only), accelerometer, gyro, proximity, compass, barometerAccelerometer, gyro, proximity, compass, barometer
 ANT+ANT+
Battery
Charging18W wired, QC2-
Music playUp to 87 hUp to 120 h
Stand-byUp to 520 h (2G) / Up to 540 h (3G)Up to 700 h (2G) / Up to 770 h (3G)
Talk timeUp to 13 h 10 min (2G) / Up to 17 h (3G)Up to 13 h (2G) / Up to 19 h (3G)
TypeLi-Ion 2900 mAh, non-removableLi-Ion 3000 mAh, non-removable
Misc
ColorsWhite, Graphite Black, Gold, Green, PinkBlack, White, Turquoise
ModelsE6653, SO-01H, SOV32, E6603, 501SOD6563
PriceAbout 150 EURAbout 250 EUR
SAR0.55 W/kg (head)     0.64 W/kg (body)-
SAR EU0.75 W/kg (head)     0.78 W/kg (body)-
Tests
Audio quality Noise -95.5dB / Crosstalk -94.8dB-
Battery life Endurance rating 48h -
Camera Photo / Video-
Display Contrast ratio: 986 (nominal), 2.88(sunlight)-
Loudspeaker Voice 65dB / Noise 62dB / Ring 66dB -
Performance Basemark OS II 2.0: 1580Basemark X: 24941-

Sony Xperia Z5

  • Superior Performance
  • Excellent Camera
  • Longer Battery Life
  • Better Sunlight Visibility
  • Faster Charging (QC2)

  • Potentially Overheating (Snapdragon 810)
  • Larger Size
  • Older Model - Limited Software Updates

Sony Xperia Z2a

  • Compact Size
  • Affordable Price
  • Decent Camera
  • Water Resistant

  • Slower Performance
  • Shorter Battery Life
  • Outdated Processor
  • Limited Software Support

Display Comparison

The Xperia Z5 features a 5.2-inch Full HD display with a contrast ratio of 986:1 (nominal) and a surprisingly good 2.88:1 in direct sunlight. The Z2a has a 5.2-inch Full HD display. While both offer good clarity, the Z5's contrast ratio suggests slightly better image quality, especially in challenging lighting conditions. Both utilize Sony's Triluminos technology for vibrant colors.

Camera Comparison

The Xperia Z5 is known for its impressive camera capabilities, featuring a 20.7MP Exmor RS sensor with a fast phase detection autofocus. The Z2a has a 20.7MP camera as well, but its performance is noticeably behind. The Z5's image processing and autofocus are superior, resulting in sharper, more detailed photos and videos. Both phones offer excellent image stabilization.

Performance

Here's where the Z5 truly shines. Its Qualcomm Snapdragon 810 chipset with an Octa-core CPU (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57) provides a substantial performance advantage over the Z2a's Snapdragon 801 and Quad-core Krait 400. Expect smoother multitasking, faster app loading, and better gaming performance on the Z5. The Z5's 20nm process is also more efficient than the Z2a's 28nm.

Battery Life

The Xperia Z5 boasts an endurance rating of 48 hours, indicating significantly better battery life than the Z2a. While the Z2a's battery capacity is comparable, the Z5's more efficient processor contributes to its extended runtime. Expect to get through a full day of moderate use on the Z5, while the Z2a may require a midday charge.

Buying Guide

The Sony Xperia Z5 is ideal for users who prioritize performance, camera quality, and battery life, and don't mind a slightly larger device. The Xperia Z2a is a good choice for budget-conscious buyers who want a compact, reliable phone with a decent camera and are comfortable with older technology.

Frequently Asked Questions

❓ Is the Snapdragon 810 in the Z5 prone to overheating?
Yes, the Snapdragon 810 was known for thermal throttling under sustained load. However, Sony implemented cooling solutions to mitigate this issue, and it's generally manageable for everyday use.
❓ Are software updates still available for either of these phones?
Software support for both devices has largely ended. You'll be running older versions of Android, which poses security risks. Custom ROMs might be an option for advanced users.