The Roland RP-107's spec sheet reads like a blowout. Three hundred and twenty-four sounds. Bluetooth audio and MIDI. An escapement action with ivory-feel keys. Three-dimensional headphone processing. Against the Kawai KDP-120's 15 sounds, no wireless connectivity, and plain plastic keys, there's almost no contest — until you sit down and start asking which of those advantages you'd actually use on a Tuesday evening.
The 324-Sound Number Is Doing Some Heavy Lifting
Here is the thing about those 324 tones: 15 of them live on the piano's physical control panel. The other 309 require loading Roland's Piano Every Day app on a phone or tablet, connecting it, and browsing a library. For a beginner who spends 95% of their practice time on a concert grand tone anyway, the practical library is identical to the KDP-120's. Both pianos give you 15 sounds to choose from during a normal practice session.
This isn't a reason to dismiss the Roland — the app is genuinely useful when you want variety, and it's free. But buyers who are excited by "324 sounds" as a headline advantage should know they're not getting 324 sounds sitting at the keyboard. They're getting 15, plus an app-based library that's there when they want it.
Speaker Wattage: The Surprise Reversal
Here is a spec that almost nobody highlights in comparisons: the KDP-120 has a 30-watt, two-speaker system. The RP-107 has a 16-watt, two-speaker system. At the same price tier, Kawai chose to put more amplification into the room-sound experience while Roland invested that budget into connectivity features.
The practical effect is audible. The KDP-120 fills a medium-sized living room comfortably at moderate volume. The RP-107's 16 watts are adequate for close-range practice but begin to feel thin if you're trying to play for a small gathering or in an open-plan space. If your primary listening mode is through the piano's speakers rather than headphones, the Kawai actually sounds fuller in the room — an outcome most buyers would not predict from looking at the spec sheets.
What the $200 Genuinely Buys
Stripping away what's more marketing than reality, the Roland's real premium over the KDP-120 comes down to four concrete things.
First, the PHA-4 Standard action includes an escapement mechanism — a subtle notch partway through each keystroke that mimics the feel of a grand piano's mechanical action. Absolute beginners won't consciously notice it, but players who have spent time on acoustic pianos will feel the difference and appreciate it. It's a genuine tactile improvement, not a gimmick.
Second, the key surface. The RP-107's keys have a simulated ivory texture that grips slightly under your fingertips. The KDP-120's keys are smooth plastic. During long practice sessions, especially when hands get warm, the textured surface makes a real difference in how secure fast passages feel.
Third, Bluetooth audio. The RP-107 can stream music wirelessly from your phone through the piano's speakers — useful for playing along with recordings, backing tracks, or just filling the room with music before you practice. The KDP-120 has no equivalent.
Fourth, headphone processing. The RP-107's 3D Ambience creates a spatial, open sound through headphones that genuinely changes the experience of late-night practice. The KDP-120 has no headphone optimization at all — through headphones, it sounds more closed and direct. For anyone who practices primarily with headphones, this is a meaningful difference in daily comfort.
The Bluetooth MIDI Point Is Smaller Than It Sounds
Both pianos support app connectivity for learning software. The RP-107 does it wirelessly via Bluetooth MIDI; the KDP-120 requires a USB cable. For a piano that lives in one spot in a living room, a short cable run is a minor friction, not a genuine barrier. If you plan to use a lesson app regularly, neither piano makes it difficult — one just requires a cable you'll quickly stop noticing.
Lesson Songs and the Long View
The RP-107 ships with 377 built-in lesson songs; the KDP-120 has 182. For the first year or two of learning, 182 is more than enough. The gap becomes relevant if you're specifically doing structured exercises from the piano's internal library without any external app. For most learners who complement practice with a teacher or a dedicated app, the lesson song count is a secondary consideration.
The Decision Hinges on How You Practice
Choose the KDP-120 if you want a straightforward, complete console piano for under $1,000 and you plan to play through the speakers — the 30-watt system delivers better room sound than the Roland at a lower price. You're not losing much by forgoing the app-gated 309 extra sounds or the wireless MIDI.
Choose the RP-107 if any of the following are true: you practice primarily through headphones and the 3D Ambience processing would genuinely improve your daily routine; you've previously played acoustic pianos and the escapement feel matters to you; or the Bluetooth audio streaming for playing along with music is something you'd actually use. The $200 premium is real, but those specific features are real too — the question is whether they match how you actually practice.