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Dumbphones and flip phones with WhatsApp

Checked against the makers' own pages · Last reviewed October 15, 2026

What WhatsApp, Signal and Telegram require

WhatsApp. WhatsApp's help center says it supports "Android phones running OS 6.0 and newer" and "iPhones running iOS 15.1 and newer," and that starting Nov. 30, 2026, only iOS 15.5 and newer will be supported. Your phone "must be able to receive SMS or calls" when you verify your number. WhatsApp's Android download page offers the app file directly (version 2.26.32.84, Android 6.0 or above, as of Oct. 15, 2026) as well as pointing to Google Play. You can link up to four other devices, such as a computer, but WhatsApp says "you'll still need your primary phone to register your WhatsApp account and link new devices."

KaiOS. WhatsApp's help center says: "WhatsApp support on devices that run KaiOS has ended." It tells KaiOS users to copy important information off the phone because there is no backup or restore from these devices.

Custom systems. WhatsApp says "custom ROMs and rooted phones aren't supported by WhatsApp." A custom ROM is a system you install in place of the one the phone shipped with.

Signal. Signal's support site says to confirm "your Android device is running Android 6.0 or later" and install from Google Play. Signal also offers an Android app file for "advanced users with special needs." It says it is "currently focused exclusively on the Android, iOS, and Desktop applications," so there is no KaiOS version.

Telegram. Telegram offers its Android app as a direct download from telegram.org. [1][2][10][11][12][13][14][15]

Phone by phone

"No" means the phone can't install apps, or runs a system WhatsApp doesn't support. "Not stated" means neither the maker nor WhatsApp says. Nothing here is WhatsApp's own statement about a specific phone model. [1][2][3][4][5][6][7][8][9][16][17][18][19][20][21][22][23]

KaiOS flip phones: WhatsApp has ended

WhatsApp used to support KaiOS phones; its help center now says "WhatsApp is no longer available on devices running KaiOS" and that "all impacted users were directly notified ahead of time." TCL lists KaiOS as the system on its Flip 3, Flip Pro (KaiOS 3.0) and FLIP 4 5G (KaiOS 4.0). TCL still lists Google Search and Google Maps on the Flip Pro and a carousel of "some of the most popular Google apps" on the FLIP 4 5G, but not WhatsApp. [2][3][16][17]

Minimalist phones: Light, Punkt, Sunbeam

• Light Phone III and Light Flip: Light's shop pages say "there is not currently ... a way to call/message with other platforms like Signal or Whatsapp," adding that "these features may be possible in future software updates."
• Punkt MP02: Punkt says the MP02 "does not support app installation or sideloading." Its Pigeon messenger is "based on the Signal Protocol" and "allows encrypted communication with other Signal-compatible users, but it is only available on the MP02." Punkt's support site says that from Sept. 15, 2026, Pigeon "may be temporarily unavailable for a few weeks while we carry out essential technical updates"; on Oct. 15, 2026 it still gave no restart date.
• Sunbeam F1 Pro: Sunbeam says its phones support group texts over MMS but not "advanced messaging apps like WhatsApp, iMessage, Telegram, Signal, or RCS," and that it "is developing Dewdrop, a Signal-compatible app coming to select new models soon."

[5][6][7][18][24]

Mudita Kompakt: sideloading at your own risk

Mudita says the Kompakt "does not include a dedicated messaging app like WhatsApp or Signal" and has no app store. Because MuditaOS K "is based on the Android Open Source Project (AOSP)," you can install Android app files (APKs) yourself from a computer with Mudita's Mudita Center app over USB-C.

Mudita's cautions: sideloaded apps "are not optimized for the Kompakt and might not always work as intended," MuditaOS K "does not support Google Services," so apps that depend on them "likely won't be able to work correctly," and problems caused by sideloaded apps, such as battery drain, aren't covered by the warranty. Mudita's support articles don't say whether WhatsApp, Signal or Telegram work. It says adding messaging apps itself "will depend on technical feasibility and user feedback." [9][20]

Android keypad phones: Qin

Duoqin's Qin phones are keypad phones with small touchscreens that run Android, made for the Chinese market. Duoqin's F21 Pro page lists Android 11 ("安卓11系统") and two editions: a student edition that "only supports downloading apps from Duoqin's official app store" and a standard edition with "unrestricted downloads" that "can install any app" (可任意安装APP). Its comparison table lists the F21 Pro in the standard edition only; the F21 Pro+ offers both, chosen when you first activate the phone, and Duoqin warns that once you choose the student edition you can't change it. Android 11 is above WhatsApp's Android 6.0 minimum, but Duoqin doesn't mention WhatsApp; its page promotes WeChat.

The F22 Pro page describes an anti-addiction student phone with WeChat and app installs from "a dedicated app store developed by Duoqin" (多亲开发的专属正版应用市场). Both are China models, so check where each is sold and its US band support on the phone's own page before buying one. [1][8][21]

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