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Arduino UNO Q 4GB (ABX00173) vs Raspberry Pi 400

Researched, not hands-on tested.How we review ›

all judged against single-board computers at a similar price

The Raspberry Pi 400 scores 7.2/10 overall, ahead of the Arduino UNO Q 4GB (ABX00173) at 5.1/10.

The Arduino UNO Q 4GB (ABX00173) leads on storage.

The Raspberry Pi 400 leads on software support, performance, I/O and networking and value.

The biggest difference is software support, where the Raspberry Pi 400 scores 10/10 to the Arduino UNO Q 4GB (ABX00173)'s 6/10.

Arduino UNO Q 4GB (ABX00173)

Arduino UNO Q 4GB (ABX00173)

5.1/10verdict: good, not the best

The Arduino UNO Q 4GB suits makers who want Linux and real-time Arduino code on one UNO-format board. It is aimed at projects that mix sensors and actuators with software running on Debian. It is a weaker fit for anyone who wants a general-purpose mini computer with wired networking and storage expansion.

Typically about £59.31 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Raspberry Pi 400

Raspberry Pi 400

7.2/10verdict: buy

The Raspberry Pi 400 is for anyone who wants a complete, compact Raspberry Pi desktop with the keyboard built in and no assembly. It suits learners, classrooms and homelabbers who want a small terminal or light desktop machine running Raspberry Pi OS. It is a weaker fit for anyone who needs easy GPIO access or fast internal storage.

Typically about £57.60 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightArduino UNO Q 4GB (ABX00173)Raspberry Pi 400
Software support30%6/1010/10
Performance25%5/106/10
Storage15%5/104/10
I/O and networking15%5/107/10
Value15%4/107/10
Overall5.1/107.2/10

Specifications

SpecArduino UNO Q 4GB (ABX00173)Raspberry Pi 400
Processor (SoC)Qualcomm Dragonwing QRB2210, quad-core Arm Cortex-A53 @ 2.0 GHz, 64-bit, Adreno 702 GPU @ 845 MHz, plus separate STM32U585 MCU (Cortex-M33, up to 160 MHz)Broadcom BCM2711, quad-core Cortex-A72 64-bit, 1.8 GHz
Memory4GB LPDDR44GB LPDDR4-3200
Storage options32GB onboard eMMC; no SD or M.2 slot listedMicroSD card slot; no eMMC, SSD or M.2 slot
NetworkingDual-band Wi-Fi 5 (802.11a/b/g/n/ac) and Bluetooth 5.1 on module WCBN3536A; no Ethernet port listedGigabit Ethernet; dual-band 2.4/5 GHz 802.11b/g/n/ac Wi-Fi; Bluetooth 5.0 and BLE
GPIOArduino UNO-compatible headers: JDIGITAL (18-pin, 3.3 V), JANALOG (14-pin, 3.3 V), JMISC (60-pin, mixed 1.8 V/3.3 V), JMEDIA (60-pin, 1.8 V), JCTL (10-pin, 1.8 V), JSPI (6-pin), Qwiic (4-pin); no total GPIO count published40-pin horizontal GPIO header on the rear of the case
Video outputsUSB-C DisplayPort Alt-Mode via ANX7625 bridge; Full HD (1920x1080) supported, 1280x720 optimal in SBC mode; shared with JMEDIA MIPI-DSI output2 × micro HDMI ports, up to 4Kp60; H.265 4Kp60 decode, H.264 1080p60 decode, OpenGL ES 3.1, Vulkan 1.0
Power inputUSB-C 5 V up to 3 A (5 V/3 A PD); 7-24 V DC on VIN; or 5 V on 5V_SYS pin; recommended minimum 15 W PD supply5V DC via USB Type-C power input

Strengths and weaknesses

Arduino UNO Q 4GB (ABX00173)

  • + Linux and a real-time MCU on one board
  • + UNO-compatible headers plus Qwiic connector
  • + Low power draw reported, about 0.5 W idle
  • − No Ethernet port listed
  • − No SD or M.2 slot listed
  • − One reviewer found it slower than a Raspberry Pi 5

Skip it if:

  • Buyers who need wired Ethernet, since none is listed.
  • Anyone who wants SD or M.2 storage expansion.
  • Users who want the fastest general-purpose Linux board at this price.
Read the full Arduino UNO Q 4GB (ABX00173) review ›

Raspberry Pi 400

  • + Keyboard and computer in one compact case
  • + Raspberry Pi OS preinstalled on the SD card
  • + Gigabit Ethernet and two USB 3.0 ports
  • − microSD only, with no M.2 or eMMC
  • − GPIO access is awkward and needs an adapter
  • − Keyboard feels cheap and spongy to some owners

Skip it if:

  • Buyers who want M.2, SSD or eMMC storage on the board.
  • Makers who will use the GPIO header often and want easy access.
  • Anyone who wants a separate bare board to mount in their own case.
Read the full Raspberry Pi 400 review ›

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