Lenovo ThinkPad X1 Yoga 4th
Yes, you can add one stick. Up to 16 GB seen working.
8 or 16 GB is soldered to the board and 2 slots are free for a LPDDR3-2133 stick.
- Free slots
- 2 memory slots
- Type
- LPDDR3-2133
- Soldered
- 8 GB or 16 GB, depending on the configuration
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 7 of 10 reports show this layout
Worked out from 10 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 51 Wh.
That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. Other pack sizes may have shipped, so check the capacity printed on yours before you order.
From 10 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad X1 Yoga 4th?
Yes, you can add one stick. Up to 16 GB seen working. 8 or 16 GB is soldered to the board and 2 slots are free for a LPDDR3-2133 stick.
What type of RAM does the Lenovo ThinkPad X1 Yoga 4th use?
LPDDR3-2133 memory soldered to the board.
How much RAM can the Lenovo ThinkPad X1 Yoga 4th take?
Machines in the reports run up to 16 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
What battery does the Lenovo ThinkPad X1 Yoga 4th use?
Batteries in these laptops report 51 Wh, going by 10 reports. Other pack sizes may have shipped, so check the capacity printed on yours.