1-on-1 Comparison
Side-by-Side Comparison
Sony KD-49XF8577 (UK version)
Highlights
- 4K UHD (3840 x 2160) LED Display
- HDR10, HLG support
- TRILUMINOS™ Display
- X1™ Processor
- Ethernet, Wi-Fi, Bluetooth
Disclosure: We earn money from the affiliate links to products associated with content in this article.
Content
Overview
Sony KD-49XF8577 was introduced in 2018. It has a LED screen with 4K UHD (3840 x 2160) resolution and 100 Hz/120 Hz refresh rate. The TV is HDR compatible and can reach 450 nits of peak brightness. It supports HDR10 and HLG. Its powerful X1™ picture processor guarantees a high quality upscaling of any low resolution source to 4K UHD (3840 x 2160).
We give Sony KD-49XF8577 TV 91 overall score out of 100. Our ranking system is based on the display specifications, video, audio and other features, connectivity and format support.
Pros and Cons
In this section we highlight pros and cons of Sony KD-49XF8577.
| PROS |
|---|
| High Resolution |
| High Refresh Rate: 100 Hz/120 Hz |
| Color Depth |
| HDR10 |
| HLG |
| DSEE |
| Clear Phase |
| DTS Digital Surround |
| Wi-Fi |
| Bluetooth |
| Works with Alexa |
| HDCP 2.3 |
| CONS |
|---|
| Edge LED |
| No Full-Array Local Dimming |
| Limited Viewing Angle |
| No HDR10+ |
| No Dolby Vision |
| No IMAX Enhanced |
| No AMD Freesync™ |
| No NVidia G-Sync |
| No 4K HFR |
| No 2K HFR |
| No VRR |
| No Dolby Atmos |
Predecessor
A predecessor of 2018 XF85 series is 2017 XE85 series. In this section we show their comparison.
| UPGRADES | Sony KD-49XF8577 | vs | Sony KD-55XE8577 |
|---|---|---|---|
| Lower Input Lag | 13 ms | vs | 32 ms |
| Dual database processing | vs | ||
| Precision Color Mapping | vs | ||
| HDCP Version | 2.3 | vs | 2.2 |
| DOWNGRADES | Sony KD-49XF8577 | vs | Sony KD-55XE8577 |
|---|---|---|---|
| Lower Rec.2020 Color Space Coverage | 65% | vs | 68% |
| Lower DCI P3 Color Space Coverage | 85% | vs | 92% |
| Lower Brightness | 300 nits | vs | 400 nits |
| Lower Contrast Ratio | 3500∶1 | vs | 4000∶1 |
| Composite Inputs | 1 (Hybrid with Component) | vs | 2 (1 via A/V 3.5mm input/1 hybrid with Component) |
For this comparison we chose 55" version of the predecessor - model KD-55XE8577. For more detailed comparison between the two please visit Sony KD-49XF8577 vs Sony KD-55XE8577 where you can also choose different size and country models to compare.
Selected Features
VA Panel
Sony KD-49XF8577 has a vertical alignment (VA) panel which is most commonly used in LCD TVs as it provides deeper blacks compared to the IPS panel. However, it is still limited with the viewing angle compared to the IPS panel or OLED display.
HDR10
Sony KD-49XF8577 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.
Specifications
In this section we present all the features and specifications available for Sony KD-49XF8577.
| BASICS | |
|---|---|
| Brand | Sony |
| Series | XF85 |
| Model | KD-49XF8577 |
| Size | 49" |
| Country | UK |
| Release Year | 2018 |
| Smart TV | |
| DISPLAY | |
|---|---|
| Display Type | LED |
| Actual Size (Diagonal) | 48.5" (123.2 cm) |
| Resolution | 4K UHD (3840 x 2160) |
| Refresh Rate | 100 Hz/120 Hz |
| Screen Design | Flat |
| Panel Type | VA |
| LED Type | Edge LED |
| Backlight Dimming | Frame Dimming |
| Color | TRILUMINOS™ Display |
| Viewing Angle | |
| Panel Bit Depth | 10 bits |
| Color Depth | 1.07 Billion |
| Rec.2020 Color Space Coverage | 65% |
| DCI P3 Color Space Coverage | 85% |
| Brightness | 300 nits |
| Peak Brightness | 450 nits |
| Contrast Ratio | 3500∶1 |
| Input Lag | 13 ms |
| VIDEO | |
|---|---|
| 3D Capability | |
| HDR10 | |
| HDR10+ | |
| Dolby Vision | |
| HLG | |
| Advanced HDR by Technicolor® | |
| IMAX Enhanced | |
| High Dynamic Range | X-tended Dynamic Range™ PRO |
| AMD Freesync™ | |
| NVidia G-Sync | |
| 4K HFR | |
| 2K HFR | |
| VRR | |
| HGIG Compatibility | |
| Picture Processor | X1™ |
| Frame Interploation Technique | Motionflow™ XR 1000 |
| Frame Interpolation Frequency | 1000 Hz |
| Black Frame Insertion | |
| Filmmaker Mode | |
| Dynamic Backlight Control | |
| 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 | |
| Auto Low Latency Mode | |
| AUDIO | |
|---|---|
| Speaker Type | Bass Reflex Speaker |
| Speaker Power Rating | 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 | 1 (Hybrid with Composite) |
| Composite Inputs | 1 (Hybrid with Component) |
| RCA Audio Outputs | |
| 3.5mm headphone Audio Output | |
| Optical Audio Output | |
| RS-232C Remote | 1 |
| DLNA | |
| OTHER | |
|---|---|
| SoC | MediaTek MT5891 |
| CPU | ARM Cortex-A53 |
| CPU Cores | 4 |
| CPU Frequency | 1100 MHz |
| GPU | ARM Mali-T860 MP2 |
| 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 | |
| Picture-In-Picture | |
| Closed Captions | (Analog) (Digital) Subtitle |
| 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+ | |
| FM Radio | |
| GENERAL | |
|---|---|
| Energy Efficiency | A |
| Power Supply | AC 220 V - 240 V, 50 Hz |
| Power Consumption (Typical) | 160 W |
| Power Consumption (In Standby) | 0.5 W |
| Dimension Without Stand (W x H x D) | 1098 mm x 644 mm x 58 mm |
| Dimension With Stand (W x H x D) | 1098 mm x 703 mm x 279 mm |
| Stand Size | Width: 741 mm |
| Dimension of Package (W x H x D) | 1188 mm x 776 mm x 148 mm |
| One Connect Box | |
| VESA Wall Mount | |
| VESA Hole Pitch (W x H) | 200 mm x 200 mm |
| Weight Without Stand | 13.2 kg |
| Weight With Stand | 13.7 kg |
| Weight of Package (Gross) | 19 kg |
| Warranty | 1 Year |
| ACCESSORIES | |
|---|---|
| Optional Accessories | Wall-Mount Bracket SU-WL450 (not supplied) |
Successor
The 2018 XF85 series has a successor - 2019 XG85 series. Let us now display the changes that the successor brought.
| UPGRADES | Sony KD-55XG8577 | vs | Sony KD-49XF8577 |
|---|---|---|---|
| Dolby Vision | vs | ||
| Dolby Atmos | vs | ||
| Dolby AC-4 | vs | ||
| Newer Bluetooth Version | 4.2 | vs | 4.1 |
| HDMI Audio Return Channel (ARC) | eARC | vs | |
| More RAM | 3 GB | vs | 2 GB |
| DOWNGRADES | Sony KD-55XG8577 | vs | Sony KD-49XF8577 |
|---|---|---|---|
| Lower Panel Bit Depth | 8 bits + FRC | vs | 10 bits |
| Precision Color Mapping | vs | ||
| Content Bar | vs |
For this comparison we chose 55" version of the successor - model KD-55XG8577. For more detailed comparison between the two please visit Sony KD-49XF8577 vs Sony KD-55XG8577 where you can also choose different size and country models to compare.
