2025 Kia K4 vs. 2025 Kia K5
As you compare the 2025 Kia K4 and the 2025 Kia K5, you can instantly tell how Kia positioned these two sedans for distinct consumers. You can see that the K4 is replacing the previous Kia Forte, while the K5 holds onto its tradition as Kia's midsize sedan with added space, performance, and premium amenities.
While both vehicles are sporting Kia's new design aesthetic, you will be able to see that they cater to different needs—one to price and usability, and the other to a more premium driving experience. When choosing between the two, you will need to pay attention to their differences in size, engine, tech, and comfort.
Exterior Design: Kia K4 vs. Kia K5
When you look at the 2025 Kia K4 for the first time, you notice its slender but aggressive styling. Kia indulges you in a more angular front grille with aggressive LED headlights that look inspired by the larger Kia EV9. The K4 is slightly shorter and rides more sleekly and sportily than the K5.
When you look at the 2025 Kia K5, you can immediately see how sleeker and curvier its body is. Kia nails the K5's unique fastback appearance with a sportier exterior to the previous one. You'll like the wider grille and fresh DRL (daytime running light) look that places it in the spotlight even more.
Additionally, if you compare their sizes, you will see that the K5 is bigger than the K4, which gives you a more executive appearance on the road. The small size of the K4 makes it easier to handle, while the K5 gives you a more regal appearance.
Performance and Engine Options
If performance is what you want, then you will have to consider how the K4 and K5 differ in their powertrains.
2025 Kia K4 Performance
When you get behind the wheel of the Kia K4, you get two engine options:
- 2.0L 4-Cylinder Engine – This base engine produces around 147 horsepower and features an Intelligent Variable Transmission (IVT). You may find this pair ideal for daily use, with good fuel economy but normal acceleration.
- 1.6L Turbocharged 4-Cylinder Engine – If you choose the turbocharged version, you get 190 horses, which is a big boost to your driving experience. This engine uses an 8-speed automatic transmission for even smoother shifting and better highway performance.
The K4 is FWD only and has no AWD option. This might factor into your choice if you live in a place that gets a lot of snow or rain.
2025 Kia K5 Performance
As you look at the K5, you'll note that it comes with more powerful engine choices and an optional AWD system:
- 1.6L Turbocharged 4-Cylinder Engine – The entry-level engine produces 180 horsepower, a slightly less amount compared to the K4 turbo but has aggressive low-end torque.
- 2.5L Turbocharged 4-Cylinder Engine (GT Model) – For performance-seekers, the 290-horsepower K5 GT is a dream. It features a dual-clutch 8-speed automatic transmission, which delivers rapid gear changes and a thrilling drive.
The K5 differs from the K4 in that it features an available all-wheel-drive (AWD) system, which offers enhanced traction on rainy roads. If you want a sedan with more responsive feel in all weather, you might prefer the K5.
Interior and Technology
As soon as you step into each vehicle, you immediately notice the differences in room, materials, and technology.
2025 Kia K4 Interior Features
You'll find that the K4's cabin is based on modernity and functionality. Kia equips the K4 with a twin-screen dashboard, featuring a 10.25-inch digital driver's instrument panel and a 10.25-inch or optional 12.3-inch infotainment touchscreen. The touchscreen gives you entry to Kia's latest infotainment system, which features wireless Apple CarPlay and Android Auto.
If comfort is a concern, you'll appreciate features like synthetic leather seating, heated front seats, and a wireless charging pad. Granted, since the K4 is a compact sedan, its back seat space is less roomy than the K5's.
2025 Kia K5 Interior Features
When you sit in the K5, you have a more upscale environment. Kia enhances the trim, giving you available real leather seats, ventilated seats, and ambient interior lighting. The dashboard design is identical to the K4, with twin digital screens, but the K5 has more upscale trims and a bigger second row.
Also, the K5's infotainment system comes with a larger available 12.3-inch touchscreen, giving you a luxury tech experience. If you enjoy premium sound, you can opt for the available Bose sound system, which is not offered on the K4.
Safety Features
The K4 and K5 both come with Kia's new Drive Wise safety suite, but the K5 has more advanced driver assistance features.
Shared Safety Features:
- Forward Collision-Avoidance Assist (FCA)
- Blind-Spot Collision Warning
- Lane Following Assist & Lane Keeping Assist
- Adaptive Cruise Control
- Collision Avoidance when Crossing Rear Traffic
K5's Additional Safety Features:
- Highway Driving Assist 2 (HDA2) – This half-automated feature helps steer and adjust speed more naturally on highways.
- Blind-Spot View Monitor – Unlike the K4, the K5 shows you a live camera view of your blind spots when you signal.
If you prefer a more advanced safety package, the K5 may be the choice for you.
Cargo and Space
When you go into the cargo area, you'll see that the K5 has more trunk room than the K4.
2025 Kia K4: around 14 cubic feet of trunk room
2025 Kia K5: around 16 cubic feet of trunk room
The other room of the K5 accommodates more simplicity when carrying bigger items. Lastly, the K5 being the midsize unit has superior back legroom from the K4 and hence the comfort for occupants for long-distance drives.
Trim Level and Price Options
Trim level and price must also come to your consideration when comparing K4 with K5.
Kia K4 Price to Kick Off: Ranging around $22,000-$25,000
Kia K5 Price to Begin With: Around $26,000-$32,000
If you want a cheap sedan with reasonable features, the K4 is the one for you. However, if you're willing to spend a little more money for more room, more power, and more luxury, then the K5 is the better choice.
Final Verdict: Which One Should You Choose?
If you desire a compact sedan with fresh features, great gas mileage, and a low price, the 2025 Kia K4 is a good choice. It takes the place of the Forte and gives you a fresh new appearance and more technology than ever.
Or, if you require more space, AWD capability, stronger engine choices, and a luxury ride, you might consider the 2025 Kia K5. It still provides a smooth and sporty ride and is an excellent choice for someone who requires something above a beginner's sedan.
In the end, your decision will be based on what you require. Do you enjoy being affordable and fuel-efficient, or do you want something stronger and more spacious? Either way, Kia gives you two good options in 2025.