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2 TVs side by side.

4 h a day
  • Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
  • 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.

Yearly running cost

Bars in proportion to the energy each model uses.

  • Qbell QT45WX73 €25.64
  • Akai AKTV4650J UHD Smart €20.67
Model Qbell QT45WX73 Akai AKTV4650J UHD Smart
Running cost
Running cost (per year) €25.64 €20.67
over 10 years €256 +€50 over 10 years €207
kWh per year 90.5 73
kg CO₂e per year from electricity use 19 15
Specifications
Brand Qbell Akai
Model QT45WX73 AKTV4650J UHD Smart
Energy class G F
Screen size 45″ (113 cm) 45″ (114 cm)
Power in on mode (SDR) 62 W 50 W
Energy class (HDR) G –
Power in on mode (HDR) 79 W –
Standby 0.5 W 0.4 W
Networked standby 0.5 W –
Resolution 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply Internal Internal
Guaranteed support 1 year –
Software updates 1 year –
Spare parts available 1 year –
On the market since August 31, 2022 February 4, 2021
EPREL registration number 603940 420990

Rows where the models differ are highlighted.