eService Digital PocketInk 3.7

$99

 

eService Digital

PocketInk 3.7

 


The palm-size E-Ink companion that does far more than read.

 


 

 

1 | Ultra-portable design, true paper feel

 


Smaller than a deck of cards and just 9 mm thin, PocketInk 3.7 tucks beside your phone yet unfolds entire novels on its 3.7-inch Carta-class ink panel. At < 60 g you’ll forget it’s in your pocket—until the next queue, commute, or campsite break begs for a chapter.

 


 

 

2 | Read without limits

 

Capability

Why it matters

EPUB & TXT, full-unicode

Drop books straight on—no conversion dances.

Custom type engine

Choose font family, point size, spacing, margins; rotate to any orientation.

Smart navigation

0–100 % progress jump, chapter picker, auto-scroll, landscape split view.

Silent “10 M-cycle” page keys

Zero click for midnight binge-reads or library stealth.

Boss Key

One tap hides pages behind a clock—instant discretion at the office.

Your place in every book is stored independently, so hopping among manuals, manga and epics feels seamless.

 


 

 

3 | Tri-edition power choices

 

Edition

Back-light

Battery

Runtime (typ.)

Lite

1 200 mAh

up to 15 days reading / clock standby

Glow

Adjustable white

1 500 mAh

up to 12 days mixed use

Enduro Glow+

Adjustable white

2 500 mAh (adds 2 mm thickness)

up to 28 days pure reading

All models charge via USB-C and top off in ≈ 90 min. Glow & Glow+ let you dial warmth from white-on-black “bed-mode” to crisp daylight.

 


 

 

4 | More than an e-reader—your

everyday info slate

 

 

  • Offline clock & calendar – dedicated RTC keeps perfect time, even unplugged for weeks.

  • Weather Hub – county-level forecast (today + 48 h) with temp/humidity pulled via Wi-Fi; doubles as a bedside display.

  • Tomato Timer – configurable Pomodoro cycles with gentle alert vibration or chime.

  • Multi-alarm system – up to five schedules; choose work-day repeat or once-off.

  • Learning Suite – flash-card vocab & poetry drills you can upload in CSV.

  • Image Frame – cycle 8-bit BMP illustrations or manga strips; OTA soon to add PNG/WEBP.

  • Music Pocket – Bluetooth 5.0 audio for MP3/WAV/AAC/low-bit FLAC; read and listen simultaneously.

 

 


 

 

5 | Always evolving:

OTA firmware

 


PocketInk runs on an ESP-Series MCU with 16 MB flash. Connect to Wi-Fi, tap System → Update, and new features—UTF-16/32 text, new image formats, UI skins—arrive without cables or computers.

 


 

 

6 | Precise craftsmanship

 

 

  • One-piece ESUN advanced polymer shell: hand-polished, matte-white, never yellows.

  • Reinforced mid-frame protects the delicate ink glass; every unit endures 48 h burn-in.

  • Tactile micro-dimple back resists slips yet feels silky in the hand.

 

 


 

 

7 | Tech sheet

 

Item

Spec

Display

3.7″ E-Ink, 800 × 480 (255 ppi), 16-level gray

Lighting

None (Lite) • Adj. front-light (Glow, Glow+)

CPU / RAM

ESP32 dual-core @ 240 MHz • 8 MB PSRAM

Storage

16 GB on-board (≈ 12 GB user), USB-C OTG thumb-drive support

Connectivity

2.4 GHz Wi-Fi, Bluetooth 5.0 (A2DP)

Sensors

High-precision temp ±0.3 °C & humidity ±2 % RH

Audio

BLE ear-/head-phone output, system beeper

Buttons

Page ↑, Page ↓, Home/Boss, Power; 10 million-cycle silent tact switches

Battery

1 200 / 1 500 / 2 500 mAh Li-ion (USB-C 5 V-1 A)

Dimensions

94 × 68 × 9 mm (Lite/Glow) • 94 × 68 × 11 mm (Glow+)

Weight

58 g / 59 g / 63 g

Materials

ESUN polymer shell • Gorilla-class front glass

Certifications

CE • RoHS • FCC

 


 

 

8 | In the eService Digital box

 

 

  1. PocketInk 3.7 reader (edition of choice)

  2. Braided USB-C charge & OTG cable

  3. Clip-on lanyard strap

  4. Quick-start leaflet & QR for full manual

  5. eService Care 12-month warranty + 50 % discount voucher for replacement battery (year 3)

 

 


 

 

9 | Who will love PocketInk?

 

 

  • Students & commuters – slip lecture PDFs, flash-cards, and novels into any jeans pocket.

  • Field techs & anglers – weather + tide charts in daylight-readable ink, 28-day battery.

  • Focus hackers – silent buttons, Pomodoro timer, boss-key clock keep you deep-work ready.

  • Minimalist desk junkies – perpetual calendar and e-paper photo frame in one elegant slab.

 

 


 

 

10 | The eService Digital advantage

 

 

  • Advance-swap support – if your reader falters in year 1, we ship a replacement first.

  • Firmware roadmap – UTF-16/32, PNG art mode, and Goodreads sync already on the 2026 schedule.

  • Community resources – open template packs, custom fonts, and scripting examples in our GitLab.

 

 


 

PocketInk 3.7 — read, learn, track, and chill anywhere.
Slip it beside your phone and carry a library, planner, and weather station—always on, never glaring—in the tiniest e-paper form we’ve ever built.


Available now in Cloud White (Lite/Glow) and Graphite Grey (Glow+). Add to cart and join the pocket-reading revolution.

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