Same body, 4G and ports. The MR400 costs a little more - for twice the 5 GHz speed.

Short answer

Archer MR400 - 867 Mbit/s on 5 GHz. Archer MR200 - 433 Mbit/s and cheaper.

Key differences

SpecTP-Link Archer MR200TP-Link Archer MR400
Type4G LTE router4G LTE router
Wi-FiWi-Fi 5, AC750Wi-Fi 5, AC1200
Wi-Fi speed300 + 433 Mbit/s300 + 867 Mbit/s
Bands2.4 + 5 GHz2.4 + 5 GHz
WAN1 × 100 Mbit/s + SIM1 × 100 Mbit/s + SIM
LAN3 × 100 Mbit/s3 × 100 Mbit/s
4G LTEbuilt-inbuilt-in
Antennasexternal + internalexternal + internal
Dimensions, weight202×141×33.6 mm202×141×33.6 mm
Pricecurrent pricescurrent prices

Specs come from the device pages on Smartphone.ua.

Wi-Fi

300 + 433 vs 300 + 867 Mbit/s.

What's the same

Built-in 4G LTE, WAN and 3 LAN at 100 Mbit/s, a 202×141×33.6 mm body.

Price

In my view, a small top-up for faster 5 GHz is reasonable.

Verdict: who should buy which

  • Faster Wi-Fi - TP-Link Archer MR400.
  • Saving money - TP-Link Archer MR200.

FAQ

Is the body the same?
Yes.

Is there gigabit?
No, 100 Mbit/s.

Which is cheaper?
The Archer MR200.

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