Sony KD-55AF8 (UK version)

•   Overview
•   Pros and Cons
•   Selected Features
•   Specifications
•   Successor

Sony KD-55AF8 was introduced in 2018. It has a OLED screen with 4K UHD (3840 x 2160) resolution and 100 Hz/120 Hz refresh rate. The TV is HDR compatible and can reach 800 nits of peak brightness. It supports HDR10, Dolby Vision, HLG and IMAX Enhanced. Its powerful X1™ Extreme picture processor guarantees a high quality upscaling of any low resolution source to 4K UHD (3840 x 2160).

We give Sony KD-55AF8 TV 92 overall score out of 100. Our ranking system is based on the display specifications, video, audio and other features, connectivity and format support.

In this section we highlight pros and cons of Sony KD-55AF8.

OLED Display

Sony KD-55AF8 has an organic light-emitting diode (OLED) display. 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-55AF8 supports 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

This TV also supports 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 maximum brightness on a scene-by-scene or frame-by-frame basis and support up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

In this section we present all the features and specifications available for Sony KD-55AF8.

BASICS
Brand	Sony
Series	AF8
Model	KD-55AF8
Size	55"
Country	UK
Release Year	2018
Smart TV

DISPLAY
Display Type	OLED
Actual Size (Diagonal)	54.6" (138.8 cm)
Resolution	4K UHD (3840 x 2160)
Refresh Rate	100 Hz/120 Hz
Screen Design	Flat
Contrast	Infinite Contrast
Color	TRILUMINOS™ Display
Viewing Angle	Perfect Viewing Angle
Panel Bit Depth	10 bits
Color Depth	1.07 Billion
Rec.2020 Color Space Coverage	76%
DCI P3 Color Space Coverage	99%
Brightness	300 nits
Peak Brightness	800 nits
Contrast Ratio	∞
Input Lag	21 ms

VIDEO
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 Processor	X1™ Extreme
Frame Interploation Technique	Motionflow™ XR
Black Frame Insertion
Filmmaker Mode
X-Reality™ PRO	4K
Dual database processing
Object-based Super Resolution
Live Color™ Tech0logy
Precision Color Mapping
Super bit mapping™ 4K HDR
Contrast Enhancement	Dynamic Contrast Enhancer
Object-based HDR remaster
Pixel Contrast Booster
Auto Low Latency Mode

AUDIO
Speaker Type	Acoustic Surface Audio+™ (Actuator+Subwoofer)
Speaker Power Rating	10 W + 10 W + 10 W + 10 W + 10 W
DSEE
Sound Processing	ClearAudio+
Clear Phase
Simulated Surround Sound	S-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
Ethernet Input
Ethernet Standard	10BASE-T/100BASE-TX
Wi-Fi
Wi-Fi Frequency	2.4 GHz, 5 GHz
Wi-Fi Protocol	802.11a/b/g/n/ac
Bluetooth
Bluetooth Version	4.1
Smartphone Connectivity	Chromecast built-in Screen mirroring (Miracast™) Video & TV SideView (iOS/Android)
Chromecast
Google Home
Virtual Assistant	Google Assistant
Works with Alexa
HDMI Inputs	4
HDMI Version	2.0
HDMI Audio Return Channel (ARC)
HDCP Version	2.3
HDMI-CEC	BRAVIA Sync
USB Inputs	3
USB 3.0 Ports	1
RF (Terrestrial / Cable ) Inputs	1
IF (Satellite) Inputs	2
Component Inputs
Composite Inputs	1 via A/V 3.5mm input
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote
DLNA

OTHER
SoC	MediaTek MT5891
CPU	ARM Cortex-A53
CPU Cores	4
CPU Frequency	1100 MHz
GPU	ARM Mali-T860 MP2
GPU Cores	2
GPU Frequency	700 MHz
RAM	2 GB
Storage	16 GB
Operating System	Android
Internet Browser	Vewd
Content Bar
Voice Command
Light Sensor
Electronic Program Guide (EPG)
Application Store	Google Play Store
Teletext
Auto Calibration with CalMAN
Picture-In-Picture
Closed Captions	(Analog) (Digital) Subtitle
PVR Function
USB HDD Recording
USB Drive Format Support	FAT16 / FAT32 / exFAT / NTFS

VIDEO FORMATS
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
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV

IMAGE FORMATS
BMP
GIF
JPEG
JPS
MPO
PNG

TUNER
Digital Tuner	2
SAT Tuner
Analog Tuner	B/G,D/K,I
Digital Terrestrial TV System	DVB-T/T2
Digital Cable TV System	DVB-C
Digital SAT TV System	DVB-S/S2
Color system	PAL / SECAM / NTSC3.58 / NTSC4.43
CI+	1.3
FM Radio

GENERAL
Energy Efficiency	B
Power Supply	AC 220 V - 240 V, 50 Hz
Power Consumption (Typical)	392 W
Power Consumption (In Standby)	0.5 W
Dimension Without Stand (W x H x D)	1226 mm x 712 mm x 55 mm 48-3/8" x 28-1/8" x 2-1/4"
Dimension With Stand (W x H x D)	1226 mm x 717 mm x 255 mm 48-3/8" x 28-1/4" x 10-1/8"
Stand Size	Width: 402 mm (15-7/8")
Dimension of Package (W x H x D)	1354 mm x 832 mm x 185 mm<53-3/8" x 32-7/8" x 7-3/8"
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)	300 mm x 200 mm 11-7/8" x 7-7/8"
Weight Without Stand	18.7 kg (41.2 lbs)
Weight With Stand	22.2 kg (48.9 lbs)
Weight of Package (Gross)	29 kg (63.9 lbs)
Warranty	1 Year

ACCESSORIES
Optional Accessories	Wall-Mount Bracket SU-WL450 (not supplied)

The 2018 AF8 series has a successor - 2019 AG8 series. Let us now display the changes that the successor brought.

UPGRADES	Sony KD-55AG8	vs	Sony KD-55AF8
Pixel Contrast Booster		vs
Dolby Atmos		vs
Dolby AC-4		vs
HDMI Audio Return Channel (ARC)	eARC	vs
More RAM	4 GB	vs	2 GB

DOWNGRADES	Sony KD-55AG8	vs	Sony KD-55AF8
Loer Speaker Power Rating	10 W + 10 W + 10 W + 10 W	vs	10 W + 10 W + 10 W + 10 W + 10 W
Sound Processing		vs	ClearAudio+
Content Bar		vs

For this comparison we chose 55" version of the successor - model KD-55AG8. For more detailed comparison between the two please visit Sony KD-55AF8 vs Sony KD-55AG8 where you can also choose different size and country models to compare.