The Lexus LS features a 12.3-inch digital instrument cluster and a 12.3-inch central touchscreen supporting wireless Apple CarPlay and Android Auto. For audio, the standard version has a 12-speaker premium sound system, while higher trims offer a 23-speaker Mark Levinson 3D surround sound system. Additional technology features include a HUD, wireless smartphone charging, 4-zone climate control with air purification, and power soft-close doors.

The Lexus LS offers multiple driving modes, including Eco, Normal, Sport S, Sport S+, and Custom modes. The driver can switch modes via the dial on the centre console. Depending on the mode, the engine response, transmission shift timing, and suspension firmness are adjusted accordingly to meet different needs for daily comfort or sporty driving.

The Lexus LS is a traditional Japanese luxury flagship sedan, ideal for business owners and executives seeking a prestigious vehicle, as well as buyers who prioritise comfort, quietness, and reliability. The Lexus LS offers spacious rear seats, excellent sound insulation, and a soft suspension, making it exceptionally comfortable for long journeys. Compared to its European rivals (such as the S-Class or 7 Series), the Lexus LS has lower maintenance costs, and Lexus's reputation for reliability is among the best in the market.

The Lexus LS is available in a range of exterior colours, including Sonic Quartz, Sonic Titanium, Graphite Black, Sonic Agate, and Deep Blue Mica. For interior colours, premium leather options include black, white, ocher, and brown.

The Lexus LS's main advantages are its exceptional reliability, with a lower long-term failure rate than its European rivals, and Lexus Hong Kong's comprehensive aftersales service network, resulting in relatively lower maintenance costs. The Lexus LS has better cabin sound insulation than its competitors, and its suspension tuning prioritises comfort, making it well-suited to Hong Kong's road conditions. Additionally, the Lexus LS enjoys strong resale value among luxury vehicles, especially the hybrid versions.

The Lexus LS requires regular service every 10,000 km or annually at an authorised service centre, using genuine engine oil and parts. As a luxury flagship sedan, repair parts for the Lexus LS are more expensive than those for ordinary Toyota models, but still reasonable compared to European rivals (such as the S-Class or 7 Series). Owners are advised to service their Lexus LS at authorised Lexus service centres to maintain a full service history, which will help resale value. Additionally, it is recommended to use the specified high-performance tyres to ensure optimal handling and braking performance.