X1C3 with i7
X1C3 with i5
X1C4 with i7
All models were non-touch LCD, and all other details were "top spec".
ie: maxed out RAM, largest SSD available.
We used these to browse the web and to check emails.
1. Battery life.
Dare we suggest that we had same anecdotal 4-5 hours battery life for all above models (X1C3 i7, X1C3 i5, X1C4 i7).
All models running on Windows 7 Pro. The X1C3 with i5 had since been upgraded to Win10, same battery life.
Also, the "Fast Charging" does really work on both X1C3 and X1C4; we strongly advise you to buy the "65W AC Adapter" to enable fast charging.
(ie: Do not get the slightly cheaper 45W AC Adapter; the savings are minimal and you lose the fast charging ability).
2. If budget allows, may we suggest you consider the X1C4 (4th gen, 2016) because of its NVMe SSD support to future proof your storage.
(X1C3 [3rd gen, 2015] supports only ACHI SSD and does not support NVMe SSD).
3. The X1C4 had three (3) USB 3.0 ports, which is appreciated.
The X1C3 had two (2) USB 3.0 ports.
4. X1C4 max RAM and SSD from Lenovo: 16 GB RAM, [expensive] 1 TB SSD (of the NVMe variety).
X1C3 max RAM and SSD from Lenovo: 8 GB RAM, and 500 GB SSD (of the ACHI variety).
Have fun deciding
Current Thinkpads: X1C4 | X1C3 | X250 | X230 | T410
Retired Thinkpads: T42 | 560 (circa 1996)
~~IBM Thinkpad era computer bag !
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