The TCL 75S551G (74.5 in) gives large living rooms a 75-class Google TV without moving up the price ladder. Its VA panel with direct LED backlight shows 3840 × 2160 at 59 ppi and 60 Hz, with Dolby Vision, HDR10+ and HLG, and a listed 10.5 ms input lag. Two 15 W speakers support Dolby Atmos. It weighs 23.2 kg with the stand and 22.9 kg without it, uses 400 × 400 mm VESA and has three HDMI inputs and one USB port.
74.5 in VA, 3840 × 2160, 59 ppi
60 Hz, 10.5 ms input lag
Dolby Vision, HDR10+, HLG
3 HDMI inputs, 1 × USB
23.2 kg with stand, 400 × 400 VESA
Pros & Cons
Pros
Seventy-five inches without a premium price
Listed input lag of 10.5 ms
Stereo speakers rated at 2 × 15 W
Adjustable stand width suits wide furniture
Stand adds only 0.3 kg to panel
Cons
Motion processing is held at 60 Hz
Single USB port at 75 inches
Needs a 400 × 400 mm mount
No local dimming zones are listed at all
Score & Ratings
7.2/10Great
Design
7
Display
8
Color
6
Performance
7
Connectivity
8
Television Identity & Market12
Specification
Value
Brand
TCL
Series
S5
Model
75S551G
Full Product Name
TCL 75S551G
Model Year
2024
TV Category
Entry / Budget Tier
Market Position
Budget / Affordable Tier
Primary Use
Budget-Conscious Everyday Viewing
Region / Variant
Not specified
Launch Status
2024 model year
Available Colors
Black
Warranty
1 year standard / 6 months commercial (N. America)
Screen Geometry & Format9
Specification
Value
Screen Size
74.5 in
Marketed Screen Size
74.5 in
Exact Diagonal
1893 mm / 189.3 cm / 74.5276 in / 6.2106 ft
Aspect Ratio
1.778:1 / 16:9
Active Display Width
1650.24 mm / 165.024 cm / 64.9701 in / 5.4142 ft
Active Display Height
928.26 mm / 92.826 cm / 36.5457 in / 3.0455 ft
Display Area
95.76 %
Screen-to-Body Ratio
95.76 %
3D Support
No
74.5" Display Size (189.2 cm) 16:9
Resolution at a Glance
Panel Architecture & Light Control4
Specification
Value
Panel Type
VA
Backlight Type
Direct LED
Panel Bit Depth
10 bits (8 bits + FRC)
Display Colors
1073741824 colors / 30 bits
Surface Treatment & Viewing Layer1
Specification
Value
Screen Coating
Anti-glare / Matte
Resolution, Scaling & Signal4
Specification
Value
Native Resolution
3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
Pixel Density
59 ppi / 23 ppcm
Pixel Pitch
0.43 mm / 0.043 cm / 0.0169 in / 0.0014 ft
Native 4K Support
Yes
◑Luminance, Blacks & Contrast7
Specification
Value
Typical Brightness
300 cd/m²
Peak Brightness
355 cd/m²
Static Contrast
6700 : 1
Static Contrast Ratio
6700 : 1
Viewing Angles
178 ° / 178 °
Horizontal Viewing Angle
178 °
Vertical Viewing Angle
178 °
HDR Formats & Tone Mapping6
Specification
Value
HDR Support
Dolby Vision
HDR10+
HDR10
HLG
HDR Formats
Dolby Vision
HDR10+
HDR10
HLG
HDR10
Yes
HDR10+
Yes
Dolby Vision
Yes
HLG
Yes
Motion Processing & Response12
Specification
Value
Native Refresh Rate
50 Hz / 60 Hz
Maximum Refresh Rate
60 Hz
Refresh Rate Range
50 Hz / 60 Hz
Vertical Frequency
50 Hz / 60 Hz
Frame Interpolation
Motion Rate
Interpolation Technology
Motion Rate
Interpolation Value
240
Interpolation Unit
MR
Motion Processing
MEMC / Motion Rate
Motion Estimation
Yes
Minimum Response Time
4.8 ms / 0.0048 s
Input Lag
10.5 ms / 0.0105 s
Console, VRR & Game Tools3
Specification
Value
Auto Low Latency Mode
Yes
Game Bar
Yes
Game Accelerator
Game Accelerator 120
Picture Intelligence & AI8
Specification
Value
Picture Processor
AIPQ with AI
AI Processor
AIPQ with AI
AI Upscaling
Yes
AI Picture
Yes
AI Contrast
Yes
AI Color
Yes
AI Clarity
Yes
AI HDR Enhancement
Yes
Broadcast Tuners & Reception6
Specification
Value
Built-In TV Tuner
Yes
Tuner Configuration
Analog (NTSC / PAL / SECAM), ATSC, Clear QAM
Analog Tuner
Yes
North American Digital Tuner
ATSC
Clear QAM
Yes
Cable/Antenna Input
Yes
Compute, Memory & Storage2
Specification
Value
Processor Brand Name
AIPQ with AI
Picture Processor
AIPQ with AI
Smart Platform & System2
Specification
Value
Smart TV
Yes
Operating System
Google TV
Streaming & Entertainment4
Specification
Value
Netflix
Yes
Prime Video
Yes
Disney+
Yes
Apple TV+
Yes
Voice Assistants & Search4
Specification
Value
Voice Control
Yes
Far-Field Voice Control
Yes
Amazon Alexa
Yes
Google Assistant
Yes
HDMI Signal Interface6
Specification
Value
Total HDMI Ports
3
HDMI 2.0 Ports
Present
HDMI CEC
Yes
Enhanced Audio Return Channel
Yes
eARC Port
Yes
Auto Low Latency Mode
Yes
Ports & Connections
USB, Audio & Legacy I/O5
Specification
Value
Total USB Ports
1
Ethernet Port
Yes
Optical Audio Output
Optical
Antenna Input
Yes
Composite Input
Yes
Wireless, LAN & Casting9
Specification
Value
LAN
Yes
Wi-Fi
Yes
Wi-Fi Standards
802.11a / 802.11ac / 802.11b / 802.11g / 802.11n
Bluetooth
Yes
Apple AirPlay
Yes
Apple HomeKit
Yes
Chromecast
Yes
Google Cast
Yes
Miracast
Yes
Speaker Layout & Output3
Specification
Value
Built-In Speakers
2 x 15 W / 2.0 CH / 30 W
Main Speakers
2 x 15 W / 2.0 CH / 30 W
Audio Brand
Onkyo
Sound Formats & Enhancement4
Specification
Value
Dolby Atmos
Yes
Dolby Digital
Yes
DTS Virtual:X
Yes
Bluetooth Audio
Yes
Camera & Video Calling1
Specification
Value
Built-In Camera
No
Connected Home & IoT1
Specification
Value
Apple HomeKit
Yes
Panel-Only Size & Mass5
Specification
Value
Dimensions Without Stand
1666.2 mm x 960.1 mm x 71.1 mm (W x H x D)
Width Without Stand
1666.2 mm
Height Without Stand
960.1 mm
Depth Without Stand
71.1 mm
Weight Without Stand
22.9 kg / 50.49 lbs
Assembled TV Size & Mass5
Specification
Value
Dimensions With Stand
1666.2 mm x 1023.6 mm x 373.4 mm (W x H x D)
Width With Stand
1666.2 mm
Height With Stand
1023.6 mm
Depth With Stand
373.4 mm
Weight With Stand
23.2 kg / 51.15 lbs
Shipping Carton Measurements5
Specification
Value
Box Dimensions
1849.1 mm x 1125.2 mm x 190.5 mm (W x H x D)
Box Width
1849.1 mm
Box Height
1125.2 mm
Box Depth
190.5 mm
Box Weight
32.5 kg / 71.65 lbs
Exterior Styling & Stand Footprint2
Specification
Value
Stand Width
1315.7 mm / 131.57 cm / 51.7992 in / 4.3166 ft
Chassis Color
Black
Wall Mounting & Installation10
Specification
Value
VESA Mount
400 x 400 mm
VESA Interface
400 x 400 mm
VESA Size
400 x 400 mm
Removable Stand
No
Stand Type
Stand with sticks / Adjustable stand width
Stand Name
Stand with sticks / Adjustable stand width
Height Adjustment
Yes
Swivel Adjustment
No
Tilt Adjustment
No
Portrait Mode
No
Electrical Load & Efficiency6
Specification
Value
Power Input
100 V - 120 V / 220 V - 240 V
110V Input Range
100 V - 120 V
220V Input Range
220 V - 240 V
AC Frequency
50 Hz - 60 Hz
Standby Consumption
0.5 W
Annual Energy Consumption
437 kWh
Environmental Operating Limits4
Specification
Value
Operating Temperature
5 °C - 35 °C / 41 °F - 95 °F
Operating Humidity
20 % - 80 %
Storage Temperature
-15 °C - 45 °C / 5 °F - 113 °F
Storage Humidity
10 % - 90 %
Gaming Validation & Compatibility2
Specification
Value
Game Bar
Yes
ALLM
ALLM
Regulatory & Industry Approvals1
Specification
Value
RoHS
Yes
Privacy, Security & Parental Control1
Specification
Value
Parental Controls
Yes
In-the-Box Components10
Specification
Value
Remote Control
Backlit voice remote control
Remote Type
Backlit voice remote control
Remote Voice Control
Yes
Screen Size
74.5 in
Dimensions
1666.2 mm x 1023.6 mm x 373.4 mm (W x H x D)
Weight
23.2 kg / 51.15 lbs
Brightness
355 cd/m²
Response Time
4.8 ms / 0.0048 s
Input Lag
10.5 ms / 0.0105 s
Refresh Rate
50 Hz / 60 Hz
RECOMMENDED VIEWING DISTANCE75"
Viewing Distance = 1.5–2.5 × Screen Size
25° field of view — Comfortable, relaxed viewing.
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily—
Monthly—
Annually—
Draws more power than 82% of the 447 comparable displays we track.
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