diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index 4859d3065e..df03deaf63 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -699,6 +699,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_reset_sure" = "Are you sure you want to terminate\nall other sessions?";
 "lng_settings_reset_one_sure" = "Do you want to terminate this session?";
 "lng_settings_reset_button" = "Terminate";
+"lng_settings_rename_device" = "Rename";
+"lng_settings_device_name" = "Device name ({device})";
+"lng_settings_rename_device_title" = "Rename current device";
 "lng_settings_manage_local_storage" = "Manage local storage";
 "lng_settings_ask_question" = "Ask a Question";
 "lng_settings_ask_sure" = "Please note that Telegram Support is run by volunteers. We try to respond as quickly as possible, but it may take a while.\n\nPlease take a look at the Telegram FAQ: it has important troubleshooting tips and answers to most questions.";
diff --git a/Telegram/SourceFiles/api/api_authorizations.cpp b/Telegram/SourceFiles/api/api_authorizations.cpp
index 2293c1e8ae..c645cb8cd5 100644
--- a/Telegram/SourceFiles/api/api_authorizations.cpp
+++ b/Telegram/SourceFiles/api/api_authorizations.cpp
@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "apiwrap.h"
 #include "base/unixtime.h"
 #include "core/changelogs.h"
+#include "core/application.h"
 #include "lang/lang_keys.h"
 
 namespace Api {
@@ -46,7 +47,9 @@ Authorizations::Entry ParseEntry(const MTPDauthorization &data) {
 		return version;
 	}();
 
-	result.name = qs(data.vdevice_model());
+	result.name = result.hash
+		? qs(data.vdevice_model())
+		: Core::App().settings().deviceModel();
 
 	const auto country = qs(data.vcountry());
 	//const auto platform = qs(data.vplatform());
@@ -91,6 +94,19 @@ Authorizations::Entry ParseEntry(const MTPDauthorization &data) {
 
 Authorizations::Authorizations(not_null<ApiWrap*> api)
 : _api(&api->instance()) {
+	Core::App().settings().deviceModelChanges(
+	) | rpl::start_with_next([=](const QString &model) {
+		auto changed = false;
+		for (auto &entry : _list) {
+			if (!entry.hash) {
+				entry.name = model;
+				changed = true;
+			}
+		}
+		if (changed) {
+			_listChanges.fire({});
+		}
+	}, _lifetime);
 }
 
 void Authorizations::reload() {
diff --git a/Telegram/SourceFiles/api/api_authorizations.h b/Telegram/SourceFiles/api/api_authorizations.h
index f571402d02..d84de71157 100644
--- a/Telegram/SourceFiles/api/api_authorizations.h
+++ b/Telegram/SourceFiles/api/api_authorizations.h
@@ -48,6 +48,7 @@ private:
 	rpl::event_stream<> _listChanges;
 
 	crl::time _lastReceived = 0;
+	rpl::lifetime _lifetime;
 
 };
 
diff --git a/Telegram/SourceFiles/boxes/sessions_box.cpp b/Telegram/SourceFiles/boxes/sessions_box.cpp
index 0d4242a337..3941c58028 100644
--- a/Telegram/SourceFiles/boxes/sessions_box.cpp
+++ b/Telegram/SourceFiles/boxes/sessions_box.cpp
@@ -11,6 +11,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_authorizations.h"
 #include "base/timer.h"
 #include "base/unixtime.h"
+#include "base/algorithm.h"
+#include "base/platform/base_platform_info.h"
 #include "ui/boxes/confirm_box.h"
 #include "lang/lang_keys.h"
 #include "main/main_session.h"
@@ -19,15 +21,46 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_layers.h"
 #include "styles/style_settings.h"
 #include "ui/widgets/buttons.h"
+#include "ui/widgets/input_fields.h"
 #include "ui/widgets/labels.h"
 #include "ui/widgets/scroll_area.h"
 #include "ui/wrap/slide_wrap.h"
 #include "ui/wrap/vertical_layout.h"
+#include "ui/layers/generic_box.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "window/window_session_controller.h"
 
 namespace {
 
 constexpr auto kSessionsShortPollTimeout = 60 * crl::time(1000);
+constexpr auto kMaxDeviceModelLength = 16;
+
+void RenameBox(not_null<Ui::GenericBox*> box) {
+	box->setTitle(tr::lng_settings_rename_device_title());
+
+	const auto name = box->addRow(object_ptr<Ui::InputField>(
+		box,
+		st::defaultInputField,
+		tr::lng_settings_device_name(
+			lt_device,
+			rpl::single(Platform::DeviceModelPretty())),
+		Core::App().settings().customDeviceModel()));
+	name->setMaxLength(kMaxDeviceModelLength);
+	box->setFocusCallback([=] {
+		name->setFocusFast();
+	});
+	const auto submit = [=] {
+		const auto result = base::CleanAndSimplify(
+			name->getLastText());
+		box->closeBox();
+		Core::App().settings().setCustomDeviceModel(result);
+		Core::App().saveSettingsDelayed();
+	};
+	QObject::connect(name, &Ui::InputField::submitted, submit);
+	box->addButton(tr::lng_settings_save(), submit);
+	box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
+}
 
 } // namespace
 
@@ -107,10 +140,11 @@ private:
 		int available = 0;
 		int info = 0;
 	};
-	RowWidth _rowWidth;
 
+	void subscribeToCustomDeviceModel();
 	void computeRowWidth();
 
+	RowWidth _rowWidth;
 	std::vector<Entry> _items;
 	std::map<uint64, std::unique_ptr<Ui::IconButton>> _terminateButtons;
 	rpl::event_stream<uint64> _terminate;
@@ -125,6 +159,7 @@ public:
 	void showData(const Full &data);
 	rpl::producer<uint64> terminateOne() const;
 	rpl::producer<> terminateAll() const;
+	rpl::producer<> renameCurrentRequests() const;
 
 	void terminatingOne(uint64 hash, bool terminating);
 
@@ -312,7 +347,28 @@ void SessionsContent::Inner::setupContent() {
 
 	const auto content = Ui::CreateChild<Ui::VerticalLayout>(this);
 
-	AddSubsectionTitle(content, tr::lng_sessions_header());
+	const auto header = AddSubsectionTitle(
+		content,
+		tr::lng_sessions_header());
+	const auto rename = Ui::CreateChild<Ui::LinkButton>(
+		content,
+		tr::lng_settings_rename_device(tr::now),
+		st::defaultLinkButton);
+	rpl::combine(
+		content->sizeValue(),
+		header->positionValue()
+	) | rpl::start_with_next([=](QSize outer, QPoint position) {
+		const auto x = st::sessionTerminateSkip
+			+ st::sessionTerminate.iconPosition.x();
+		const auto y = st::settingsSubsectionTitlePadding.top()
+			+ st::settingsSubsectionTitle.style.font->ascent
+			- st::defaultLinkButton.font->ascent;
+		rename->moveToRight(x, y, outer.width());
+	}, rename->lifetime());
+	rename->setClickedCallback([=] {
+		Ui::show(Box(RenameBox), Ui::LayerOption::KeepOther);
+	});
+
 	_current = content->add(object_ptr<List>(content));
 	const auto terminateWrap = content->add(
 		object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
@@ -400,6 +456,18 @@ void SessionsContent::List::resizeEvent(QResizeEvent *e) {
 	computeRowWidth();
 }
 
+void SessionsContent::List::subscribeToCustomDeviceModel() {
+	Core::App().settings().deviceModelChanges(
+	) | rpl::start_with_next([=](const QString &model) {
+		for (auto &entry : _items) {
+			if (!entry.hash) {
+				entry.name.setText(st::sessionNameStyle, model);
+			}
+		}
+		update();
+	}, lifetime());
+}
+
 void SessionsContent::List::showData(gsl::span<const Entry> items) {
 	computeRowWidth();
 
diff --git a/Telegram/SourceFiles/core/core_settings.cpp b/Telegram/SourceFiles/core/core_settings.cpp
index a0124b6a6a..05eeab2548 100644
--- a/Telegram/SourceFiles/core/core_settings.cpp
+++ b/Telegram/SourceFiles/core/core_settings.cpp
@@ -124,7 +124,8 @@ QByteArray Settings::serialize() const {
 		+ Serialize::bytearraySize(proxy)
 		+ sizeof(qint32) * 2
 		+ Serialize::bytearraySize(_photoEditorBrush)
-		+ sizeof(qint32);
+		+ sizeof(qint32) * 3
+		+ Serialize::stringSize(_customDeviceModel.current());
 
 	auto result = QByteArray();
 	result.reserve(size);
@@ -221,7 +222,8 @@ QByteArray Settings::serialize() const {
 			<< _photoEditorBrush
 			<< qint32(_groupCallNoiseSuppression ? 1 : 0)
 			<< qint32(_voicePlaybackSpeed * 100)
-			<< qint32(_closeToTaskbar.current() ? 1 : 0);
+			<< qint32(_closeToTaskbar.current() ? 1 : 0)
+			<< _customDeviceModel.current();
 	}
 	return result;
 }
@@ -305,6 +307,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	qint32 hiddenGroupCallTooltips = qint32(_hiddenGroupCallTooltips.value());
 	QByteArray photoEditorBrush = _photoEditorBrush;
 	qint32 closeToTaskbar = _closeToTaskbar.current() ? 1 : 0;
+	QString customDeviceModel = _customDeviceModel.current();
 
 	stream >> themesAccentColors;
 	if (!stream.atEnd()) {
@@ -465,6 +468,9 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	if (!stream.atEnd()) {
 		stream >> closeToTaskbar;
 	}
+	if (!stream.atEnd()) {
+		stream >> customDeviceModel;
+	}
 	if (stream.status() != QDataStream::Ok) {
 		LOG(("App Error: "
 			"Bad data for Core::Settings::constructFromSerialized()"));
@@ -606,6 +612,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	}();
 	_photoEditorBrush = photoEditorBrush;
 	_closeToTaskbar = (closeToTaskbar == 1);
+	_customDeviceModel = customDeviceModel;
 }
 
 QString Settings::getSoundPath(const QString &key) const {
@@ -672,6 +679,23 @@ void Settings::setThirdColumnWidth(int width) {
 	_thirdColumnWidth = width;
 }
 
+QString Settings::deviceModel() const {
+	const auto custom = customDeviceModel();
+	return custom.isEmpty() ? Platform::DeviceModelPretty() : custom;
+}
+
+rpl::producer<QString> Settings::deviceModelChanges() const {
+	return customDeviceModelChanges() | rpl::map([=] {
+		return deviceModel();
+	});
+}
+
+rpl::producer<QString> Settings::deviceModelValue() const {
+	return customDeviceModelValue() | rpl::map([=] {
+		return deviceModel();
+	});
+}
+
 int Settings::thirdColumnWidth() const {
 	return _thirdColumnWidth.current();
 }
diff --git a/Telegram/SourceFiles/core/core_settings.h b/Telegram/SourceFiles/core/core_settings.h
index f8a26f04d1..8de40b6a31 100644
--- a/Telegram/SourceFiles/core/core_settings.h
+++ b/Telegram/SourceFiles/core/core_settings.h
@@ -614,6 +614,22 @@ public:
 		return _closeToTaskbar.changes();
 	}
 
+	void setCustomDeviceModel(const QString &model) {
+		_customDeviceModel = model;
+	}
+	[[nodiscard]] QString customDeviceModel() const {
+		return _customDeviceModel.current();
+	}
+	[[nodiscard]] rpl::producer<QString> customDeviceModelChanges() const {
+		return _customDeviceModel.changes();
+	}
+	[[nodiscard]] rpl::producer<QString> customDeviceModelValue() const {
+		return _customDeviceModel.value();
+	}
+	[[nodiscard]] QString deviceModel() const;
+	[[nodiscard]] rpl::producer<QString> deviceModelChanges() const;
+	[[nodiscard]] rpl::producer<QString> deviceModelValue() const;
+
 	[[nodiscard]] static bool ThirdColumnByDefault();
 	[[nodiscard]] static float64 DefaultDialogsWidthRatio();
 	[[nodiscard]] static qint32 SerializePlaybackSpeed(float64 speed) {
@@ -714,6 +730,7 @@ private:
 	rpl::variable<WorkMode> _workMode = WorkMode::WindowAndTray;
 	base::flags<Calls::Group::StickedTooltip> _hiddenGroupCallTooltips;
 	rpl::variable<bool> _closeToTaskbar = false;
+	rpl::variable<QString> _customDeviceModel;
 
 	bool _tabbedReplacedWithInfo = false; // per-window
 	rpl::event_stream<bool> _tabbedReplacedWithInfoValue; // per-window
diff --git a/Telegram/SourceFiles/mtproto/mtp_instance.cpp b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
index 3d8439d613..457a60a76b 100644
--- a/Telegram/SourceFiles/mtproto/mtp_instance.cpp
+++ b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
@@ -224,9 +224,12 @@ private:
 	std::unique_ptr<QThread> _otherSessionsThread;
 	std::vector<std::unique_ptr<QThread>> _fileSessionThreads;
 
-	QString _deviceModel;
+	QString _deviceModelDefault;
 	QString _systemVersion;
 
+	mutable QMutex _deviceModelMutex;
+	QString _customDeviceModel;
+
 	rpl::variable<DcId> _mainDcId = Fields::kDefaultMainDc;
 	bool _mainDcIdForced = false;
 	base::flat_map<DcId, std::unique_ptr<Dcenter>> _dcenters;
@@ -321,9 +324,19 @@ Instance::Private::Private(
 		restart();
 	}, _lifetime);
 
-	_deviceModel = std::move(fields.deviceModel);
+	_deviceModelDefault = std::move(fields.deviceModel);
 	_systemVersion = std::move(fields.systemVersion);
 
+	_customDeviceModel = Core::App().settings().customDeviceModel();
+	Core::App().settings().customDeviceModelChanges(
+	) | rpl::start_with_next([=](const QString &value) {
+		QMutexLocker lock(&_deviceModelMutex);
+		_customDeviceModel = value;
+		lock.unlock();
+
+		reInitConnection(mainDcId());
+	}, _lifetime);
+
 	for (auto &key : fields.keys) {
 		auto dcId = key->dcId();
 		auto shiftedDcId = dcId;
@@ -874,7 +887,10 @@ bool Instance::Private::isTestMode() const {
 }
 
 QString Instance::Private::deviceModel() const {
-	return _deviceModel;
+	QMutexLocker lock(&_deviceModelMutex);
+	return _customDeviceModel.isEmpty()
+		? _deviceModelDefault
+		: _customDeviceModel;
 }
 
 QString Instance::Private::systemVersion() const {