Lenovo
Lenovo ThinkVision M14t
$349.99
Released 2022
Best Portable Monitors · head-to-head
Lenovo ThinkVision M14t vs UPERFECT 14" 3K OLED (M140B03W)
A sourced, side-by-side comparison. UPERFECT 14" 3K OLED (M140B03W) is cheaper at $239.99. Every spec and price links to its source.
UPERFECT
UPERFECT 14" 3K OLED (M140B03W)
$239.99Cheaper
Released 2023
Which is better: the Lenovo ThinkVision M14t or UPERFECT 14" 3K OLED (M140B03W)?
They split the 2 specs we compare evenly. The UPERFECT 14" 3K OLED (M140B03W) is the cheaper at $239.99.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Lenovo ThinkVision M14t |  UPERFECT 14" 3K OLED (M140B03W) |
|---|---|---|
| US price | $349.99 | $239.99 |
| Brand | Lenovo | UPERFECT |
| Released | 2022 | 2023 |
| Size (in) | 14 | 14 |
| Resolution | 1920x1080 | 2880x1800 |
| Panel type | IPS | OLED |
| Refresh (Hz) | 60 | 120 |
| Ports | 2x USB-C (one each side) | 1x USB-C, 1x Mini-HDMI |
| Touchscreen | Yes | No |
| Weight (lb) | 1.5 | 1.54 |
| Release | 2022 | 2023 |
Sources — Lenovo ThinkVision M14t: laptopmag.com (verified 2026-06-15). UPERFECT 14" 3K OLED (M140B03W): newegg.com (verified 2026-06-15).
What's the difference between the Lenovo ThinkVision M14t and UPERFECT 14" 3K OLED (M140B03W)?
Where the two actually differ on the specs we track (6 of 7). Matching specs are omitted.
- Resolution: Lenovo ThinkVision M14t 1920x1080 vs UPERFECT 14" 3K OLED (M140B03W) 2880x1800
- Panel type: Lenovo ThinkVision M14t IPS vs UPERFECT 14" 3K OLED (M140B03W) OLED
- Refresh (Hz): Lenovo ThinkVision M14t 60 vs UPERFECT 14" 3K OLED (M140B03W) 120
- Ports: Lenovo ThinkVision M14t 2x USB-C (one each side) vs UPERFECT 14" 3K OLED (M140B03W) 1x USB-C, 1x Mini-HDMI
- Touchscreen: Lenovo ThinkVision M14t true vs UPERFECT 14" 3K OLED (M140B03W) false
- Weight (lb): Lenovo ThinkVision M14t 1.5 vs UPERFECT 14" 3K OLED (M140B03W) 1.54
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Lenovo ThinkVision M14t
Three whitelisted labs (Tom's Hardware, Notebookcheck, Tom's Guide) hands-on tested this original 14-inch 1080p M14t. All praise its accurate color, light ~700g body, built-in kickstand and bundled active stylus, but flag the USB-C-only connectivity. Sources disagree sharply on brightness: 'extremely bright' versus 'not especially bright.' (3 sourced reviews, 3 lab-tested.)
Praised: Accurate, vibrant color and strong image quality for a portable; Lightweight (~700g) with a sturdy built-in kickstand; Bundled active stylus and responsive 10-point touch.
Flagged: Expensive for a portable monitor ($350-449); USB-C DisplayPort alt-mode only; no HDMI, speakers or battery; Limited brightness that drops further in accurate sRGB mode.
UPERFECT 14" 3K OLED (M140B03W)
No sourced tester review yet.