WORLDWIDE DELIVERY:

Official store – click here
Aliexpress 1 – click here
Aliexpress 2 – click here
Tindie – click here

LOCAL FAST DELIVERY:

Argentina – click here or here
Australia – click here
Austria – click here
Belgium – click here
Czech Republic – click here
Estonia – click here
France – click here
Germany – click here or here
Hungary – click here
India – click here
Latvia – click here
Lithuania – click here
Netherlands – click here
Poland – click here
Portugal – click here
Romania – click here
Slovakia – click here
Spain – click here or here
Sweden – click here
Switzerland – click here
UAE – click here
UK – click here
US – click here or here
Thailand – click here

Useful links:

SLZB-06 Matter-over-Thread – Youtube guide
SLZB-06M Matter-over-Thread – here
Zigbee+Bluetooth hub on SLZB-06/0-6M/06p7 – here
SLZB-06 FW video review – here
Two or more coordinators with one Home Assistant – here and here
Real feedback – here
160+ Zigbee devices – here

Which Zigbee chip should I choose?

CC2652P

Rank: 1

CC2652P (48Mhz, 88Kb RAM) is the Top 1 on our list. Reliability has been tested over the years and by many users. CC2652* chips are fully supported in Zigbee2MQTT (EFR32 has an “experimental” support status), and are also fully supported in ZHA. That is, it is a universal coordinator for both ZHA and Zigbee2MQTT. Zigbee firmware supports up to 200 end devices. Even with the maximum number of Zigbee devices, the chip parameters (processor 48Mhz and 88Kb RAM) are not even close to the maximum, so there is no difference in speed compared to other chips in the series (CC2652P7: 48Mhz+152Kb RAM, CC2674P10: 48Mhz+264Kb RAM). So, CC2652P is #1.

CC2652P7

Rank: 2

The CC2652P7 (48Mhz + 152 Kb RAM) has the same processor (48Mhz) as the CC2652P chips, but a slightly larger amount of RAM – 152Kb (CC2652P: 88Kb). At the same time, neither the processor nor the memory is used even by 30% when the chip is operating in coordinator mode with the maximum possible number of connected end devices. Therefore, this chip is more of a marketing ploy. Our recommendation is to pay attention to CC2652P. It is cheaper, more reliable (because it has been tested by a large number of users), and supports +20dB of gain at the firmware level.
That is, If you like marketing gimmicks, the CC2652P7 is your choice.
The CC2652P7 chip is ranked #2 in our rating.

CC2674P10

Rank: 4

The CC2674P7 (48Mhz + 264Kb RAM) has the same processor (48Mhz) as the CC2652P and CC2652P7 chips, but a slightly larger amount of RAM – 264Kb (CC2652P: 88Kb, CC2652P: 152Kb,). At the same time, neither the processor nor the memory is used even by 30% when the chip is operating in coordinator mode with the maximum possible number of connected end devices. Therefore, this chip is more of a marketing ploy. In addition, the firmware for this chip is in test mode. As of February 2024, we recommend that you buy these coordinators at your own risk, or if you are a firmware developer and you need a test device on this chip. Our recommendation is to pay attention to the CC2652P. It is cheaper, more reliable (as it has been tested by a large number of users), and supports +20 dB of gain at the firmware level.
That is, if you like marketing gimmicks, CC2674P10 is your choice.
The CC2674P10 chip takes the 4th place in our rating.

EFR32MG21

Rank: 1

The EFR32MG21 (80Mhz + 96Kb RAM) does not differ significantly from the CC2652P chips in terms of technical characteristics. However, there are a few things that the user should know: (1) This chip is ideal for working with ZHA (since the native Home Assistant coordinator is built on the same chip), but it is listed in the “experimental” section for Zigbee2MQTT. In practice, these chips show more stable operation than CC26** in Zigbee coordinator mode. In addition, although both EFR32MG21 and CC2652P chips have a +20dB amplifier, EFR32 chips usually show higher LQI with end devices. We put this chip on the 1st place along with the CC2652P chip in our rating.

EFR32MG24

Rank: 3

EFR32MG24 (80Mhz + 256KbRAM) does not differ significantly from EFR32MG21 chip in terms of technical characteristics, except for the size of RAM: 256Kb versus 96Kb in EFR32MG21. The amount of RAM is at the level of the CC2674P10 chip. However, as in the case of the CC2674P10 chip, even with the maximum connection, the processor and RAM are not loaded to the maximum in EFR32MG21. So whether it makes sense to overpay for EFR32MG24 is a rhetorical question. Therefore, here we would say the same as with CC2652P7 and CC2674P10 – if you like marketing gimmicks, CC2674P10 is your choice. This chip takes the 3rd place in our rating.