Features Key features of the Xperia Z Ultra  vs G Flex 

screen size

screen resolution

Xperia Z Ultra
1920 x 1080
G Flex
1280 x 720



Xperia Z Ultra
Quad core
G Flex
Quad core

camera resolution

G Flex
13 MP

Differences What are the advantages of each

Back view of Sony Xperia Z Ultra

Reasons to consider the
Sony Xperia Z Ultra

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Much better theoretical download speed 150 Mb/s vs 42.2 Mb/s More than 3.5x better theoretical download speed; enjoy lightning fast downloads on modern networks
Supports FM radio Yes vs No Somewhat common; Listen to music and news from local radio stations
Acts as a wi-fi hotspot Yes vs No Somewhat common; Share your cellphone's data plan with other devices
Significantly higher resolution 1920 x 1080 vs 1280 x 720 2.2x higher resolution
Sharper screen 344 ppi vs 244 ppi More than 40% sharper PPI; enjoy photo-realistic, crisp images
Bigger screen 6.4" vs 6" More than 5% bigger screen
Thinner 6.5 mm vs 7.9 mm Around 20% thinner
Front view of LG G Flex

Reasons to consider the
LG G Flex

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Significantly lighter 177 g vs 212 g More than 15% lighter
Higher resolution front camera 13 MP vs 8 MP Around 65% higher resolution front camera; Video chat with other people
Store more stuff 32 GB vs 16 GB 2x more storage capacity; free yourself from memory cards
More battery capacity 3,500 mA·h vs 3,050 mA·h Around 15% more battery capacity
Records higher def video 1920 x 1080 @ 60 fps vs 1920 x 1080 @ Unknown 60x higher def video

Reviews Word on the street

Xperia Z Ultra  vs G Flex 

Fans of the Xperia line and Sony's software will no doubt love the phone, with the possible exception of battery life, but those who aren't loyal to the brand may find the durable metal casing and better display on the HTC One and the myriad features and replaceable battery on the Samsung Galaxy S4 more captivating.
Xperia Z Ultra

The Z Ultra towers above all those phablets not only in screen size, but in specs and design, too, so if you've thrown out ergonomics and pocketability with the decision to get one anyway, you might as well do the full song and dance.
Xperia Z Ultra

Great display, Snapdragon 800 processor, good battery life, slim design is really impressive, waterproofing.
Xperia Z Ultra

Where the Xperia Ultra Z made us want to cry with its camera performance, when it came to the media offerings, we were really impressed.
Xperia Z Ultra


8.1 Out of 10
7.6 Out of 10

Specifications Full list of technical specs


Xperia Z Ultra  vs
G Flex 
Size 6.4" 6"
Resolution 1920 x 1080 1280 x 720
Multitouch Yes N/A
PPI 344 ppi 244 ppi


Clock speed 2.2 GHz 2.26 GHz
Number of cores Quad core Quad core
Internal storage 16 GB 32 GB

photo & video

Camera 8 MP 13 MP
Resolution 8 MP 13 MP
Secondary camera 2 MP 2.1 MP
Video resolution 1920 x 1080 @ Unknown 1920 x 1080 @ 60 fps


Generation 4G 4G
LTE Cat 4 (150/)
LTE Cat3
HSUPA (5.76 Mb/s)
LTE Cat4 (150 Mb/s)
EDGE (0.38 Mb/s)
LTE (20 Mb/s)
HSPA (unspecified)
HSDPA+ (42.2 Mb/s)
UMTS (0.38 Mb/s)
GPRS (0.01 Mb/s)
GSM (0.01 Mb/s)


Capacity 3,050 mA·h 3,500 mA·h

form factor

Xperia Z Ultra  vs
G Flex 
Weight 212 g 177 g
Thickness 6.5 mm 7.9 mm
Size 92.2 x 179.4 x 6.5 mm 81.6 x 160.5 x 7.9 mm


Has an assisted GPS Yes Yes


Supports FM radio Yes No


Operating system Android 5.1 Android 4.4.2
Multitasking Yes Yes
App store Android Market Android Market
Adobe flash support No No
App store size 850,000 apps 850,000 apps


Acts as a wi-fi hotspot Yes No
Supports NFC Yes Yes
Bluetooth Bluetooth v4.0 Bluetooth v4.0
Sony Xperia Z Ultra
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LG G Flex
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