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Black clamshell phone with 2.8 inch inner screen and 1.77 inch outer display

Nokia

Nokia PNN100385 2780 Flip 2.8" KaiOS cell phones - unlocked Black

SKU CH-74Z7-S666A MPN PNN100385

Flip phone with 2.8 inch internal display, 1.77 inch external screen, 5 megapixel camera, KaiOS 3.1, Bluetooth 4.2, removable 1450mAh battery

  • CPUQualcomm QM215
  • Storage drive512 MB
  • Operating systemKaiOS v3.1
  • Form factorFlip Phones
  • SIM configurationSingle SIM Card
  • SIM typeNano SIM
  • Internal 2.8" LCD for clear viewing
  • External 1.77" screen shows notifications closed
  • KaiOS 3.1 runs WhatsApp and maps
  • 0 MP rear camera captures moments
  • Removable 1450mAh battery keeps you going

Nokia 2780 Flip KaiOS phone

The Nokia 2780 Flip is a compact flip phone running KaiOS v3.1 on a Qualcomm QM215 processor at 1.3 GHz. It offers 512 MB internal storage with 4 GB RAM and supports MicroSD cards up to 32 GB. A 2.8 inch internal LCD and a 1.77 inch external display show notifications at a glance. The device is unlocked for GSM and Verizon networks.

Thermals noise and power in daily use

The 1450 mAh removable lithium-ion battery provides power for typical calling and messaging throughout the day. Bluetooth 4.2 and Wi-Fi 802.11 b/g/n on the 2.4 GHz band handle wireless connections without generating noticeable heat. The simple KaiOS interface keeps processor demand low during normal operation. USB Type-C charging replenishes the battery efficiently.

Behaviour under sustained load

Continuous voice calls or prolonged hotspot use will drain the 1450 mAh cell faster than intermittent use. The single-core QM215 processor manages background tasks steadily but is not designed for heavy multitasking or extended media streaming. Internal storage of 512 MB fills quickly with photos from the 5.0 MP rear camera. MicroSD expansion up to 32 GB is required for larger media libraries.

How it compares

Measured against everything we stock in Unlocked Smartphones, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 75% of the 2,409 comparable items (median $168.99).
Storage drive 512 MB
Lower than about 99% of the 1,888 comparable items (median 128 GB).

Specifications

Product
Brand nameNokia
Product line2780 Flip
Product colorBlack
Processor
CPUQualcomm QM215
CPU clock speed1.3 GHz
Memory
RAM capacity4 GB
Storage
Storage drive512 MB
Display
Main screen size2.8 in (7.11 cm)
Screen resolution240 × 320
Outer display size1.77 in (4.5 cm)
Audio & video
Back camera5.0 MP
Connectivity
SIM configurationSingle SIM Card
SIM typeNano SIM
Ports & slots
USB portsType-C
Power
Battery capacity1,450 mAh
Battery typeLithium Ion Battery
Size & build
Form factorFlip Phones
Shipping weight0.14 kg
Package size235 × 171 × 83 mm
Software
Operating systemKaiOS v3.1
More details
Built-in sensorsHall sensor

Questions about this item

How do I insert the Nano SIM and microSD card without bending the tray?

Open the back cover, remove the 1450mAh battery, then slide the Nano SIM into the lower slot with gold contacts down and the microSD card up to 32GB into the upper slot until each clicks.

What user-replaceable part will wear out first and how do I swap it?

The 1450mAh lithium-ion battery is removable; buy a compatible replacement, open the back cover, lift the old cell out, insert the new one, and replace the cover.

Which radio hits its thermal limit first during a long hotspot session?

The 2.4GHz Wi-Fi 802.11 b/g/n radio will throttle before the Bluetooth 4.2 or cellular modems under sustained data load.

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