docomo Kids Keitai KY-41C in yellow, front and back with its strap — Image: NTT docomo (Maker product photo, shown to identify the product; removed on request)

Kids' phones · Kyocera (for NTT docomo) · Japan

docomo Kids Keitai KY-41C (Kyocera)

On sale Not available in the US No Google

Ships with: docomo Kids Keitai software (no Google Play)

Touchscreen · 3.4" · 1 GB RAM · 8 GB · 1,500 mAh · 109 g · 107 × 54 × 13.4 mm

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

The Kids Keitai KY-41C is a small touchscreen phone for children that Kyocera makes for NTT docomo. It lets a child call and message only contacts registered in advance, such as family, has a 100 dB alarm buzzer, and is not on Google's list of Google Play devices. As of Oct. 15, 2026, docomo's online shop lists it at ¥25,960. It uses an eSIM, works on docomo LTE bands 1 and 19 only, and docomo lists Japanese as its only input language. [1][2][3][4]

Price: ¥25,960 at docomo (Oct. 2026) [3]
Availability: On sale at docomo [1][3]
Where it's sold: Japan only (docomo); eSIM and Japanese LTE bands only [1][2]
Google apps: Not on Google's Play device list; docomo describes no app store [1][4]
Apps: Fixed functions: calls and +Message with approved contacts, camera, safety tools [1]
Software updates: No update period on docomo's product page [1]
Released: February 24, 2023 [1]
Carriers: NTT docomo only (Japan); LTE bands 1 and 19 [1][2][7]
US networks: LTE bands 1 and 19 only; no bands for use abroad [2]

Price: ¥25,960 at docomo's online shop (Oct. 15, 2026) [3]
Google: Not on Google's Play-supported device list [4]
Who it can call: Only contacts registered in advance, such as family (calls and +Message) [1]
Plan: docomo Kids Keitai Plan, ¥550 a month [5]

On this page

Specifications
What it is
Apps and Google
Where it is sold and how to get one
Will it work in the US?
What's different
Questions people ask

What it is

docomo sells the KY-41C under its own "Kids Keitai" brand; Kyocera builds it. It has a 3.4-inch screen, 5 MP cameras on the front and back, and a sealed 1,500 mAh battery.

docomo lists these features:

Calls and +Message chats only with contacts registered in advance, such as family
An alarm buzzer of about 100 dB: pulling the strap or sliding a switch sounds it, flashes a light and can call a parent
Emergency calls to 110 and 119
Location lookup from a parent's phone with docomo's paid Imadoco Search service
A "home" alert: the phone looks for the home Wi-Fi router at set times and tells the parent when the child is home
A parent can switch off silent mode remotely with an app
Washable with foaming hand soap; IPX5/IPX8 and IP6X rated; Kyocera says it passed a MIL-STD-810H drop test

[1][6]

Specifications

Display	3.4-inch TFT, FWVGA (480 x 854) [2][6]
Chip	Not disclosed [2]
RAM	1 GB [6]
Storage	8 GB; no memory card slot listed [2][6]
Battery	1,500 mAh, not removable; about 450-460 min talk, about 320 h standby [2][6]
Charging	USB-C; about 130 min [2]
Dimensions	107 x 54 x 13.4 mm [6]
Weight	About 109 g [6]
Rear camera	About 5 MP [6]
Front camera	About 5 MP [6]
4G LTE bands	1, 19 (Japan only) [2]
5G bands	None [2]
SIM	eSIM only [2][6]
Wi-Fi / Bluetooth	Wi-Fi 802.11 b/g/n (2.4 GHz); Bluetooth 5.1; no NFC/FeliCa listed [2][6]
Water/dust rating	IPX5/IPX8, IP6X; MIL-STD-810H drop test [6]
Headphone jack	None listed (docomo's spec sheet shows no earphone jack) [2]
Fingerprint/face unlock	None listed (docomo's spec sheet shows no biometric unlock) [2]

Apps and Google

The KY-41C is a kids' phone with fixed functions, not a smartphone. docomo's product page describes calls, +Message, the camera, Bluetooth photo sharing and the safety features, and no app store. Google's list of Google Play supported devices (checked Oct. 15, 2026) has no entry for the KY-41C.

Parents use Kyocera's "Kokotsuna" app on their own phone for some remote settings. [1][4][6]

Where it is sold and how to get one

docomo sells the KY-41C in docomo shops and its online shop, which listed it at ¥25,960 (tax included, after discounts) on Oct. 15, 2026. docomo says its online shop does not accept purchases in the name of anyone under 18, and that existing Kids Keitai users must change models at a docomo shop.

docomo designs the phone around its Kids Keitai Plan (¥550 a month as of Oct. 15, 2026, with a price change announced from Dec. 1, 2026), which includes free calls within a family group and free +Message photos and videos. [1][3][5]

Will it work in the US?

Not as sold. docomo lists LTE bands 1 and 19 only, no bands for use abroad, and no 3G or 5G. The phone takes only an eSIM (a built-in digital SIM), not a physical SIM card. [2][6]

What's different

Language: docomo lists Japanese (hiragana and kanji) as the input language
Battery is not removable; docomo replaces it as a repair
Wi-Fi 802.11 b/g/n (2.4 GHz) and Bluetooth 5.1
USB-C charging, about 130 minutes

[1][2][6]

Questions people ask

Can the KY-41C install apps like LINE or YouTube?

docomo describes no app store, and the phone is not on Google's list of Google Play devices. It does calls, +Message, photos and safety features. [1][4]

Can I use a docomo Kids Keitai outside Japan?

docomo lists no LTE bands for use abroad, only Japanese bands 1 and 19, and the phone uses a docomo eSIM. [2]

Sources (7)

キッズケータイ KY-41C | ドコモキッズ | 製品 | NTTドコモ, NTT docomo. Checked October 15, 2026.
スペックとサービス・機能 | キッズケータイ KY-41C | NTTドコモ, NTT docomo. Checked October 15, 2026.
機種一覧 (ケータイ, らくらくホン, キッズケータイ) | ドコモオンラインショップ, NTT docomo. Checked October 15, 2026.
Google Play supported devices (supported_devices.csv), Google. Checked October 15, 2026.
キッズケータイプラン（KY-41C・SK-41D・SH-03M向け） | 料金・割引 | NTTドコモ, NTT docomo. Checked October 15, 2026.
スペック | キッズケータイ KY-41C | 京セラ, Kyocera. Checked October 15, 2026.
SIMロック解除 (SIM unlocking), NTT docomo. Checked October 15, 2026.