Sony KD-55AG8

Sony KD-55AF9

SCORE:
93
SCORE:
94

Highlights

  • 4K UHD (3840 x 2160) OLED Display
  • HDR10, Dolby Vision, HLG support
  • TRILUMINOS™ Display
  • Perfect Viewing Angle
  • X1™ Extreme Processor
  • Ethernet, Wi-Fi, Bluetooth

Highlights

  • 4K UHD (3840 x 2160) OLED Display
  • HDR10, Dolby Vision, HLG support
  • TRILUMINOS™ Display
  • Perfect Viewing Angle
  • X1™ Ultimate Processor
  • Ethernet, Wi-Fi, Bluetooth

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Content

Overview

Here we are comparing Sony KD-55AG8 to Sony KD-55AF9 to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both models have the same 4K UHD (3840 x 2160) resolution and they both support HDR.

We have evaluated the TVs from available features and specifications. Sony KD-55AF9 gets higher overall score in our ranking system which is based on the display specifications, video, audio and other features, connectivity and format support.

Sony KD-55AG8

Sony KD-55AF9

DISPLAY
94
VIDEO FEATURES
94
AUDIO FEATURES
88
OTHER FEATURES
93
CONNECTIVITY
96
FORMAT SUPPORT
83
OVERALL
93
DISPLAY
93
VIDEO FEATURES
94
AUDIO FEATURES
92
OTHER FEATURES
98
CONNECTIVITY
96
FORMAT SUPPORT
83
OVERALL
94

Selected Features

OLED displays

Sony KD-55AG8 and Sony KD-55AF9 have organic light-emitting diode (OLED) displays. This is a self-emissive display which can completely turn off individual pixels leading to the ideal black levels and better contrast during HDR compared to any LCD displays. This makes them to be the best choice for dark rooms. OLED enables a simpler internal structure than conventional displays. With just a few layers, OLED TVs are very lightweight and thin. OLED displays also have better viewing angles. However, they are not able to achieve such high brightness as modern LCD displays which makes them less suitable in bright rooms.

HDR10

Sony KD-55AG8 and Sony KD-55AF9 support HDR10 which was announced on August 27, 2015, by the Consumer Technology Association and uses the wide-gamut Rec. 2020 color space. It is not backward compatible with SDR. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 is technically limited to a maximum of 10,000 nits of brightness and uses 10-bit color which corresponds to 1024 shades of the primary RGB colors.

Dolby Vision

Sony KD-55AG8 and Sony KD-55AF9 also support Dolby Vision which is an update to HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to 10,000 nits on a scene-by-scene or frame-by-frame basis and supports up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

Advantage of Sony KD-55AG8

This section shows the features and specifications which are the reason to choose Sony KD-55AG8 over Sony KD-55AF9.

Sony KD-55AG8 vs Sony KD-55AF9
Dolby Atmos vs

Advantage of Sony KD-55AF9

This section shows the features and specifications which are the reason to choose Sony KD-55AF9 over Sony KD-55AG8.

Sony KD-55AG8 vs Sony KD-55AF9
Object-based Super Resolution vs
Higher Speaker Poer Rating 10 W + 10 W + 10 W + 10 W vs 13 W + 13 W + 13 W + 13 W + 13 W + 13 W + 10 W + 10 W
Sound Processing vs ClearAudio+
TV Center Speaker Mode vs
Newer Bluetooth Version 4.1 vs 4.2
Content Bar vs
Auto Calibration with CalMAN vs

Common Strengths and Weaknesses

STRENGTHS
👍   High Resolution
👍   High Refresh Rate: 100 Hz/120 Hz
👍   Perfect Viewing Angle
👍   Color Depth
👍   HDR10
👍   Dolby Vision
👍   HLG
👍   IMAX Enhanced
👍   DSEE
👍   Clear Phase
👍   DTS Digital Surround
👍   Wi-Fi
👍   Wi-Fi Direct
👍   Bluetooth
👍   Works with Alexa
👍   HDCP 2.3
WEAKNESSES
👎   No HDR10+
👎   No AMD Freesync™
👎   No NVidia G-Sync
👎   No 4K HFR
👎   No 2K HFR
👎   No VRR

Specifications

And in the end we display all the specifications which are present for both models.

Note: The following table shows only those details which are applicable for both models and excludes the ones that are applicable for only one model. If you want to see a full list of specs for each model please visit their individual pages here - Sony KD-55AG8 and here - Sony KD-55AF9.

BASICS Sony KD-55AG8 Sony KD-55AF9
BrandSonySony
CountryUKUK
Series 2AG8AF9
ModelKD-55AG8KD-55AF9
Release Year20192018
Size55"55"
Smart TV
DISPLAY Sony KD-55AG8 Sony KD-55AF9
Display TypeOLEDOLED
Actual Size (Diagonal)54.6" (138.8 cm)54.6" (138.8 cm)
Resolution4K UHD (3840 x 2160)4K UHD (3840 x 2160)
Refresh Rate100 Hz/120 Hz100 Hz/120 Hz
Screen DesignFlatFlat
ContrastInfinite ContrastInfinite Contrast
ColorTRILUMINOS™ DisplayTRILUMINOS™ Display
Viewing AnglePerfect Viewing AnglePerfect Viewing Angle
Panel Bit Depth10 bits10 bits
Color Depth1.07 Billion1.07 Billion
DCI P3 Color Space Coverage99%99%
Contrast Ratio
VIDEO Sony KD-55AG8 Sony KD-55AF9
3D Capability
HDR10
HDR10+
Dolby Vision
Dolby Vision IQ
HLG
Advanced HDR by Technicolor®
IMAX Enhanced
AMD Freesync™
NVidia G-Sync
4K HFR
2K HFR
VRR
HGIG Compatibility
Picture ProcessorX1™ ExtremeX1™ Ultimate
Frame Interploation TechniqueMotionflow™ XRMotionflow™ XR
Filmmaker Mode
X-Reality™ PRO 4K 4K
Dual database processing
Object-based Super Resolution
Live Color™ Tech0logy
Precision Color Mapping
Super bit mapping™ 4K HDR
Contrast Enhancement Dynamic Contrast Enhancer Dynamic Contrast Enhancer
Object-based HDR remaster
Pixel Contrast Booster
Auto Low Latency Mode
AUDIO Sony KD-55AG8 Sony KD-55AF9
Speaker TypeAcoustic Surface Audio+™ (Actuator x2 + Subwoofer x2)Acoustic Surface Audio+™ (Actuator+Subwoofer)
Speaker Poer Rating10 W + 10 W + 10 W + 10 W13 W + 13 W + 13 W + 13 W + 13 W + 13 W + 10 W + 10 W
DSEE
Sound ProcessingClearAudio+
Clear Phase
Simulated Surround SoundS-Force Front SurroundS-Force Front Surround
TV Center Speaker Mode
Dolby Atmos
Dolby Digital
Dolby Digital Plus
Dolby Pulse
Dolby AC-4
DTS Digital Surround
WiSA Ready
CONNECTIVITY Sony KD-55AG8 Sony KD-55AF9
Ethernet Input
Ethernet Standard10BASE-T/100BASE-TX10BASE-T/100BASE-TX
Wi-Fi
Wi-Fi Direct
Wi-Fi Frequency2.4 GHz, 5 GHz2.4 GHz, 5 GHz
Wi-Fi ProtocolIEEE802.11a/b/g/n/acIEEE802.11a/b/g/n/ac
Bluetooth
Bluetooth Version4.14.2
Smartphone ConnectivityChromecast built-in
Video & TV SideView (iOS/Android)
Chromecast built-in
Video & TV SideView (iOS/Android)
Chromecast
Google Home
Virtual Assistant Google Assistant Google Assistant
Works with Alexa
HDMI Inputs44
HDMI Version2.0b2.0b
HDMI Audio Return Channel (ARC) eARC eARC
HDCP Version2.32.3
HDMI-CEC BRAVIA Sync BRAVIA Sync
USB Inputs33
USB 3.0 Ports11
RF (Terrestrial / Cable ) Inputs11
IF (Satellite) Inputs22
Component Inputs
Composite Inputs1 via A/V 3.5mm input1 via A/V 3.5mm input
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote
DLNA
OTHER Sony KD-55AG8 Sony KD-55AF9
SoCMediaTek MT5891MediaTek MT5893
CPUARM Cortex-A53ARM Cortex-A73
CPU Cores44
CPU Frequency1100 MHz1500 MHz
GPUARM Mali-T860 MP2ARM Mali-G71
RAM4 GB4 GB
Storage16 GB16 GB
Operating SystemAndroid Android
Internet BrowserVewdVewd
Content Bar
Voice Command
Light Sensor
Electronic Program Guide (EPG)
Application Store Google Play Store Google Play Store
Teletext
Auto Calibration with CalMAN
Picture-In-Picture
Closed Captions(Analog)
(Digital) Subtitle
(Analog)
(Digital) Subtitle
PVR Function
USB HDD Recording
USB Drive Format SupportFAT16 / FAT32 / exFAT / NTFSFAT16 / FAT32 / exFAT / NTFS
VIDEO FORMATS Sony KD-55AG8 Sony KD-55AF9
3GPP
AV1
AVI
ASF
DivX
Flash Video
H.263
H.264
H.265
MKV
M2TS
MP4
MPEG-4
QuickTime
RealVideo
TS
VC-1
VP7
VP8
VP9
VOB
VRO
WebM
WMV
Xvid
AUDIO FORMATS Sony KD-55AG8 Sony KD-55AF9
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV
IMAGE FORMATS Sony KD-55AG8 Sony KD-55AF9
BMP
GIF
JPEG
JPS
MPO
PNG
TUNER Sony KD-55AG8 Sony KD-55AF9
Digital Tuner 2 2
SAT Tuner
Analog TunerB/G,D/K,IB/G,D/K,I
Digital Terrestrial TV SystemDVB-T/T2DVB-T/T2
Digital Cable TV SystemDVB-CDVB-C
Digital SAT TV SystemDVB-S/S2DVB-S/S2
Color systemPAL / SECAM / NTSC3.58 / NTSC4.43PAL / SECAM / NTSC3.58 / NTSC4.43
CI+ 1.4 1.3
FM Radio
GENERAL Sony KD-55AG8 Sony KD-55AF9
Ener1y E22iciencyBB
Power SupplyAC 220 V - 240 V, 50 HzAC 220 V - 240 V, 50 Hz
Power Consumption (Typical)375 W401 W
Power Consumption (In Standby)0.5 W0.5 W
Dimension Without Stand (W x H x D)1.229 x 710 x 51 mm (48 1/2 x 28 x 2 1/8 in)1228 mm x 711 mm x 86 mm
48-3/8" x 28" x 3-1/2"
Dimension With Stand (W x H x D)1.229 x 730 x 290 mm (48 1/2 x 28 3/4 x 11 1/2 in)1228 mm x 709 mm x 320 mm
48-3/8" x 28" x 12-5/8"
Stand SizeWidth: 657 mm (25 7/8 in)397 mm (15.63")
Dimension of Package (W x H x D)1.411 x 836 x 185 mm (55 5/8 x 33 x 7 3/8 in)1458 mm x 836 mm x 196 mm<57.40" x 32.91" x 7.72"
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)300 x 300 mm (11 7/8 x 11 7/8")400 mm x 200 mm
15-3/4" x 7-7/8"
Weight Without Stand17.6 kg (38.8 lbs)23.8 kg (52.5 lbs)
Weight With Stand19.8 kg / 43.7 lbs30.0 kg (66.1 lbs)
Weight of Package (Gross)27 kg (59.5 lbs)38 kg (83.8 lbs)
Warranty1 Year1 Year
ACCESSORIES Sony KD-55AG8 Sony KD-55AF9
Optional AccessoriesWallmount Bracket (SU-WL450(Terminal access limitation), SU-WL850)Depends on country selectionWall-Mount Bracket SU-WL450 (not supplied)

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