When it comes to compact luxury SUVs, the 2025 Mercedes-Benz GLA and 2025 Mercedes-Benz GLB both lead the way with bold design, innovative tech, and next-level comfort. However, while they share many premium features, including a powerful 48-volt engine system and dual-screen infotainment, these two vehicles cater to different lifestyles. If you're trying to decide which of these dynamic models fits you best, this comparison is your guide. Read on to see the 2025 Mercedes-Benz GLA vs. 2025 Mercedes-Benz GLB comparison by Mercedes-Benz of Scottsdale in Scottsdale, AZ.
Both the GLA and GLB receive stylish updates for 2025, including new wheel options, AMG Line packages, and subtle lighting tweaks. However, they take very different design approaches. The 2025 GLA 250 leans sporty and curvy, with a rounded shape and sculpted grille that brings a strong road presence. Opting for the AMG Line package adds a more aggressive front splitter and chrome accents, while the AMG Line with Night Package gives it a darker, stealthier edge. The 2025 GLB, in contrast, offers a boxier, squared-off design that gives it a more rugged, upright look. The GLB sports gloss black accents and a unique grille styling when equipped with the Night Package. Even the camera placement is different; on the GLA, the 360-degree camera sits below the grille star, while on the GLB, it’s mounted above. These small design elements make a significant visual impact depending on your style preference.
Both models offer a modern cabin with high-end finishes, twin digital displays, wireless phone charging, and the latest MBUX infotainment system. You’ll find identical tech in both vehicles, but the vibe differs slightly. The GLA’s cabin is sleek and sporty, especially with the AMG package’s upgraded steering wheel featuring red stitching and suede-like materials. It feels low, compact, and agile, making it great for city drivers who want a nimble ride. Meanwhile, the GLB interior feels more substantial. With its boxier exterior, the interior feels taller and airier. You sit a bit higher, which some drivers may prefer for visibility and comfort. It's better for those who enjoy a slightly more upright seating position and more headroom, especially in the rear seats.
Both SUVs offer generous rear legroom, but again, design affects experience. The GLA provides a cozy backseat with ample legroom and a panoramic sunroof that helps the cabin feel open. The headroom is slightly less due to the curved roofline, but most passengers won’t feel cramped. On the other hand, the GLB offers similar legroom but gains an edge in headspace thanks to its squared-off roof. This makes it a practical choice for families, tall passengers, or anyone planning long drives with backseat riders. It’s a subtle difference, but one that can matter in daily use.
Cargo space might be the deciding factor for many shoppers. The GLA offers excellent versatility for a compact SUV. Its trunk is well-shaped, with some storage underneath and fold-flat seats to expand your space. It’s ideal for drivers who want SUV capability without going full-size. But if you often haul more gear, the GLB steps ahead. Thanks to its boxy rear and taller cargo area, it provides extra height and overall volume. Whether it's sports equipment, grocery runs, or luggage for road trips, the GLB easily handles it.
If you’re looking for a sporty, sleek, and urban-friendly SUV, the 2025 GLA delivers style and performance in a compact package. But if you want a little more headroom, cargo flexibility, and upright comfort, the 2025 GLB may be your ideal match. To learn more or to get behind the wheel of either model, contact Mercedes-Benz of Scottsdale in Scottsdale, AZ. Our team is ready to help you explore these luxury vehicles.