Rigol DS1104Z-S Plus vs Siglent SDS2104X Plus
Head-to-head spec comparison to help you pick the right scope for your bench.
Rigol
$549
Siglent
$1099
Spec-by-Spec Comparison
| Spec | Rigol DS1104Z-S Plus | Siglent SDS2104X Plus |
|---|---|---|
| Bandwidth | 100 MHz | 100 MHz |
| Sample Rate | 1 GSa/s | 2 GSa/s |
| Channels | 4 | 4 |
| Memory Depth | 12 Mpts | 200 Mpts |
| Display Size | 7" | 10.1" |
| Weight | 3.2 kg | 4.5 kg |
| Price | $549 | $1099 |
| Rating | 7.0/10 | 8.0/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | Yes |
| WiFi | No | No |
| Battery | No | No |
| Buy on Amazon · $549 | Buy on Amazon · $1,099 |
Pros & Cons
Rigol DS1104Z-S Plus
Pros
- 100MHz bandwidth with 4 channels — no bandwidth hack needed
- Built-in 25MHz function generator saves desk space and cost
- Same excellent trigger set as the DS1054Z
- Protocol decoding (SPI, I2C, UART) included
- Proven platform for teaching labs that need scope plus signal generator
Cons
- At ~$549, the DHO924S delivers more for $100 less
- Same dated interface as the DS1054Z — no touchscreen
- No WiFi or CAN/LIN decoding at this price
- The DS1000Z platform is aging compared to the DHO series
Siglent SDS2104X Plus
Pros
- 200Mpt memory depth is exceptional — capture minutes of data at full sample rate
- 10.1-inch IPS touchscreen is genuinely gorgeous to work with
- 2GSa/s sample rate handles fast signals better than 1GSa/s scopes
- Comprehensive protocol decoding including FlexRay, I2S, and MIL-STD-1553
- Built-in 25MHz AWG function generator
- Feels like a professional instrument — because it is one
Cons
- At ~$1,099, it's at the top of hobbyist budgets
- 100MHz bandwidth is surprisingly low for this price tier
- Large and heavy — needs permanent bench space
- Overkill for casual Arduino projects or simple bench work
Our Verdicts
Rigol DS1104Z-S Plus
The DS1104Z-S Plus is the DS1054Z with the limitations officially removed: full 100MHz bandwidth and a built-in 25MHz function generator. At ~$549, it's the premium version of a proven platform that has a decade of community support behind it. The problem in 2026 is the Rigol DHO924S — it costs $100 less, has 250MHz bandwidth, a 7-inch IPS touchscreen, WiFi, 50Mpt memory, and is generally a better scope in almost every way. The DS1104Z-S Plus's advantage is its established reliability and the integrated function generator, which the base DHO924S also includes. I'd only choose this over the DHO924S if you're buying for a teaching lab with specific software integration requirements, or if you specifically need the proven DS1000Z platform.
Siglent SDS2104X Plus
The Siglent SDS2104X Plus is a professional-grade scope that happens to be affordable enough for serious hobbyists, and using it for a long debugging session makes the price feel justified. The 200Mpt memory depth is the headline — you can capture minutes of data at full sample rate, then scroll back and zoom into any moment without re-triggering. The 10.1-inch IPS touchscreen is excellent. The comprehensive protocol decoding (including FlexRay and I2S) makes it the right tool for serious automotive or audio embedded work. The surprise is that all this comes with only 100MHz bandwidth — you're paying for depth, features, and build quality, not raw frequency response. At $1,099, this is a serious investment. It only makes sense if you do electronics work regularly enough to amortize that cost, and if you want an instrument you genuinely won't outgrow.